Physics Packet Unit 0 - PBworks

Student Worksheets

Unit 0 - Kinematics Concepts

Identify the:

1. Control Group

2. Independent Variable

3. Dependent Variable

Smithers thinks that playing classical music in his factory will increase the productivityof workers. He creates two groups of 50 workers each and assigns each group the sametask (in this case, they're supposed to staple a set of papers). Group A is placed in a roomwith classical music playing. Group B is in a room with no music playing. After an hour,Smithers counts how many stacks of papers each group has made. Group A made 1,587stacks, Group B made 2,113 stacks.

4. What should Smithers conclusion be?

5. How could this experiment be improved?

Homer notices that his bedroom floor is covered in a strange orange mold. His friendBarney tells him that papaya juice will get rid of the orange mold. Homer decides tocheck this out by spraying half of his floor with papaya juice. He sprays the other halfof his floor with water. After 3 days of "treatment" there is no change in theappearance of the orange mold on either side of his floor. (

1.What was the initial observation?

Identify the:

2. Control Group



5. What should Homer's conclusion be?

© Jan Parker, The Science Vault, 2006

1

His test consisted of weighing the cockroaches after 10 days. He found that 8 out of 10 ofthe "protein" cockroaches gained 1.5 grams of mass. Seven out of 10 of the "cereal" BR.did the same. c.t:>c..k.

Bart believes that cockroaches exposed to protein powder will grow larger thancockroaches exposed only to cereaL He decides to perform an experiment by placing 10cockroaches in a container of protein powder for 10 days. He compared these 10cockroaches to another 10 cockroaches that had been placed in a container of Fruit Loops.

Identify the:

1. Control Group



4. What should Bart's conclusion be?

5. How could Bart's experiment be improved?

Krusty was told that a certain stink bomb lasts 50% longer when detonated indoors.Interested in this product, he buys the stink bomb and compares it to his usual product.Group A was placed in a classroom where the new stink bomb was detonated and Group Bwas in placed in a classroom with the usual stink bomb. Group A reported offensive smellsfor 45 minutes. Group B reported bad smells for 30 minutes.

Identify the:1. Control Group



4. Explain whether the data supports the advertisements claims about its product.

© Jan Parker, The Science Vault, 2006

2

IIlr1& 11111 Name _

Metric Conversions

Write the correct abbreviation for each metric unit.

1) Kilogram __ 4) Milliliter __ 7) Kilometer __

2) Meter 5) Millimeter __ 8) Centimeter __

3) Gram __ 6) Liter __ 9) Milligram __

Try these conversions, using the ladder method.

10) 2000 mg = g 15) 5 L = mL 20) 16 em = mm

11) 104 km = m 16) 198 g = kg 21) 2500 m = km

12)480em= __ m 17) 75 mL = __ L 22) 65 g = __ mg

13) 5.6 kg == __ g 18) 50em= __ m 23) 6.3 em = __ mm

14) 8 mm= __ em 19)5.6m= __ em 24) 120 mg = __ g

Compare using <, >, or =.

25) 63 em 06 m 27) 5 gO 508 mg 29) 1,500 mL 01.5 L

26) 536 em 053.6 dm 28) 43 mg05 g 30) 3.6 m 036 em

T. Trimpe 2000 httpi/Zsciencespot.nct/

3

Measuring Worksheet 10 Convert the measuring units as indicated.

1a. 500 cm = _____ m

1b. 10 km = ______ m

2a. 800 cm = _____ m

2b. 3000 m = _____ km

3a. 9 cm = ______ mm

3b. 6 cm = ______ mm

4a. 8 km = ______ m

4b. 4000 m = _____ km

5a. 7000 m = _____ km

5b. 1000 cm = _____ m

6a. 80 mm = _____ cm

6b. 5000 m = _____ km

7a. 1 m = ______ cm

7b. 10 cm = ______ mm

8a. 2 cm = ______ mm

8b. 2000 m = _____ km

9a. 300 cm = _____ m

9b. 200 cm = _____ m

10a. 900 cm = _____ m

10b. 30 mm = _____ cm

4

Measuring Worksheet 13 Convert the measuring units as indicated.

1a. 0.225 kg = ______ g

1b. 5.879 kg = ______ g

2a. 8.201 kg = ______ g

2b. 9.059 L = ______ ml

3a. 8.798 kg = ______ g

3b. 5600 g = _____ kg

4a. 0.21 L = ______ ml

4b. 8.173 L = ______ ml

5a. 404 ml = _____ L

5b. 9.704 L = ______ ml

6a. 4649 ml = _____ L

6b. 118 g = _____ kg

7a. 4395 g = _____ kg

7b. 9748 ml = _____ L

8a. 8849 g = _____ kg

8b. 5913 g = _____ kg

9a. 1.104 kg = ______ g

9b. 6428 g = _____ kg

10a. 7540 g = _____ kg

10b. 9924 g = _____ kg

5

Name ______________________________ Date ______________

Class Period _________

Dimensional Analysis Worksheet

Set up and solve the following using dimensional analysis. 1) 5,400 inches to miles 2) 16 weeks to seconds 3) 54 yards to mm 4) 36 cm/sec to mph

1 mile = 5,280 ft 1 inch = 2.54 cm 3 feet = 1 yard 454 g = 1lb 946 mL = 1 qt 4 qt = 1 gal

Don’t forget: What you want What you’ve got

6

[Ans. .085 miles]

[Ans. 9,676,800 sec]

[Ans. 49,378 mm]

36,000 cm to miles [Ans. .224 miles]

5) 1.09 g/mL to lbs/gal

6) 19 inches to feet 7) 840 inches to cm 8) 4.22 g/cm to lbs./ft 9) 32 ft/sec to meters/min

10) Write, and then solve your own dimensional analysis problem. Be creative!

7

681 g to lbs. [Ans. 1.5 lbs.]

[Ans. 1.58 ft]

[Ans. 2,134 cm]

[Ans. .283 lbs/ft]

[Ans. .585.2 m/min]

Scientific Notation and Standard Notation

Convert the following numbers into scientific notation:

1) -0.0265 7) 392

2) 53000 8) - 0.00361

3) - 3400! ! ! ! ! 9) 0.000023

4) 101000! ! ! ! ! 10) - 0.010

5) - 45.01! ! ! ! ! 11) 1000000

6) 0.00671! ! ! ! ! 12) - 4.50

Convert the following numbers into standard notation:

1) 1.92 x 10 3 7) -4.29 x 10 5

2) 3.51 x 10 -7 8) -2.23 x 10 -4

3) 2.30 x 104! ! ! ! 9) 1.76 x 10-3

4) 1.901 x 10-2! ! ! ! 10) 8.65 x 10-1

5) 9.11 x 103! ! ! ! ! 11) 5.40 x 107

6) 1.76 x 100! ! ! ! ! 12) 7.4 x 10-5

Name_______________________________ Period________ Date:__________

8

1-10 95 90 85 80 75 70 65 60 55 5011-20 45 40 35 30 25 20 15 10 5 0

1) 4.83 × 10-3

2) 9 × 103

3) 8.2 × 100

4) 8.291 × 10-3

5) 1.939 × 103

6) 3.4 × 10-3

7) 4.37 × 106

8) 1 × 10-5

9) 4 × 100

10) 1.9 × 100

Convert from standard form to scientific notation.

11) 8.58

12) 0.0000076

13) 0.0000038

14) 0.0002829

15) 2.55

16) 980,000

17) 0.7

18) 11,800

19) 0.0764

20) 0.000044

1. 0.00483

2. 9,000

3. 8.2

4. 0.008291

5. 1,939

6. 0.0034

7. 4,370,000

8. 0.00001

9. 4

10. 1.9

11. 8.58 × 100

12. 7.6 × 10-6

13. 3.8 × 10-6

14. 2.829 × 10-4

15. 2.55 × 100

16. 9.8 × 105

17. 7 × 10-1

18. 1.18 × 104

19. 7.64 × 10-2

20. 4.4 × 10-5

Convert from scientific notation to standard form.Converting Scientific Notation

Math www.CommonCoreSheets.com

Name:

Answers

199

More Practice With Scientific Notation

Perform the following operations in scientific notation. Refer to the

introduction if you need help.

Section E: Multiplication (the "easy" operation - remember that you just

need to multiply the main numbers and add the exponents).

Model: (2 x 102) x (6 x 10

3) = 12 x 10

5 = 1.2 x 10

6

Remember that your answer should be expressed in two parts, as in the

model above. The first part should be a number less than 10 (eg: 1.2) and the

second part should be a power of 10 (eg: 106). If the first part is a number

greater than ten, you will have to convert the first part. In the above

example, you would convert your first answer (12 x 105) to the second

answer, which has the first part less than ten (1.2 x 106). For extra practice,

convert your answer to decimal notation. In the above example, the decimal

answer would be 1,200,000

scientific notation decimal notation

25) (1 x 103) x (3 x 10

1) = ___________________ ____________________

26) (3 x 104) x (2 x 10

3) = ___________________ ____________________

27) (5 x 10-5

) x (11 x 104) = __________________ ____________________

28) (2 x 10-4

) x (4 x 103) = ___________________ ____________________

1010

Section F: Division (a little harder - we basically solve the problem as we did above, using multiplication. But we need to "move" the bottom (denominator) to the top of the fraction. We do this by writing the negative value of the exponent. Next divide the first part of each number. Finally, add the exponents).

(12 x 103) Model: ----------- = 2 x (103 x 10-2) = 2 x 101 = 20 (6 x 102)

Write your answer as in the model; first convert to a multiplication problem, then solve the problem.

multiplication problem final answer (in sci. not.) 29) (8 x 106) / (4 x 103) = __________________ ____________________ 30) (3.6 x 108) / (1.2 x 104) = ________________ _____________________ 31) (4 x 103) / (8 x 105) = ___________________ _____________________ 32) (9 x 1021) / (3 x 1019) = __________________ _____________________

1111

Scientific Notation Standard Notation

Operations with Scientific Notation

Add or Subtract the following numbers that are in scientific notation. Make sure your final answer is in proper scientific notation.

1) 5 x 10 3 + 4.3 x 10 4 =

2) 2.3 x 10 -4 - 6 x 10 -5 =

3) 4 x 10 5 + 3.3 x 10 6 =

4) 7.2 x 10-2 + 5.3 x 10-1

5) 9.2 x 1010 - 8.4 x 1011

Multiply or Divide the following numbers that are in scientific notation. Make sure your final answer is in proper scientific notation.

1) (3.5 x 10 5) x (4 x 10 3) =

2) (9 x 10 4) / (3 x 10 2) =

3) (5 x 10 6) x (7 x 10 8) =

4) (7.5 x 105) / (2.5 x 103) =

5) (4.5 x 103) / (2 x 106) =

Name_______________________________ Period________ Date:__________

1212

Conceptual Physics Name: ________________________ Date: ___________________

Speed, Distance, Time Problems

1. Given: Time = 4 s, Distance = 24 m Find: Speed

2. Given: Time = 35 s, Speed = 6 m/s Find: Distance

3. Given: Distance = 40 m, Speed = 9 m/s Find: Time

4. Given: Time = 14 s, Displacement = 24 m, west Find: Velocity

5. Given: Time = 4 s, Velocity = 12 m/s, north Find: Displacement

6. Given: Time = 5 minutes, Velocity = 10 m/s, east Find: Displacement

13

[Ans. 6 m/s]

[Ans. 210 m]

[Ans. 4.44 s]

[Ans. 1.71 m/s west]

[Ans. 48 m north]

[Ans. 3000 m east]

13

[Ans. 6 m/s]

[Ans. 210 m]

[Ans. 4.44 s]

[Ans. 1.71 m/s west]

[Ans. 48 m north]

[Ans. 3000 m east]

Physics Name: ________________________ Date: ___________________

SPEED AND VELOCITY PROBLEMS

1. A car travels 125 m in 4.5 s. What is the speed of the car?

2. A train travels a distance of 6 km in a time of 3.5 minutes. What is the speed of the train in m/s?

3. A student runs at 4.2 m/s for 100 m. How much time does it take the student to run the 100 m?

4. A child rides a bike for 15 minutes at a speed of 7.5 m/s. Calculate the distance the boy travels.

5. A speed boat can move at a top speed of 41 m/s. At top speed, how much time will it take to move 1.75 km?

6. A shopper pushes a cart at 1.5 m/s. It takes her 6.1 s to move down an aisle. How long is the aisle?

7. A swimmer swims west for 50 m in 24.9 s. (A) What is the swimmer’s speed? (B) What is swimmer’s velocity?

8. A bear is walking north in the woods for 12 minutes. The bear covers 726 m during this time. (A) What is the bear’s speed? (B) What is the bear’s velocity?

14

[Ans. 27.8 m/s]

[Ans. 28.6 m/s]

[Ans. 23.8 s]

[Ans. 6,750 m]

[Ans. 42.7 s]

[Ans. 9.15 m]

[Ans. 2.008 m/s ; 2.008 m/s west]

[Ans. 1.008 m/s ; 1.008 m/s north]

14

[Ans. 27.8 m/s]

[Ans. 28.6 m/s]

[Ans. 23.8 s]

[Ans. 6,750 m]

[Ans. 42.7 s]

[Ans. 9.15 m]

[Ans. 2.008 m/s ; 2.008 m/s west]

[Ans. 1.008 m/s ; 1.008 m/s north]

AverageVelocityWorksheet1.Melanierunsthe150mdash.Sherunsthefirst85min7seconds,thenslowsdownandrunsthelast65min14moreseconds.Whatishisaveragespeed?(Ans.7.1m/s)2.Dorarunsadistanceof5600cm.Sherunsthefirst3000cmin12seconds,thenspeedsupandrunstherestofthedistanceinjust5seconds.Whatisheraveragespeedinmeterspersecond?(Ans.3.3m/s)3.Ifyourun60min7seconds,thenrun25min4seconds,whatisyouraveragespeedfortheentirerun?(Ans.7.7m/s)4.Ifyourun30min4seconds,thenrun50min7seconds,andthenrun80min12seconds,whatisyouraveragespeedfortheentirerun?(Ans.7.0m/s)5.Dillonisrunningadistanceof90m.Forthefirst35m,heruns5m/s.Therestofthetimeheruns3m/s.Whatishisaveragespeedfortherun?(Ans.3.6m/s)6.Awomanruns5m/sfor13seconds,thenruns3m/sfor20seconds,andthenruns6m/sfor25seconds.Findheraveragespeedfortheentirerun.(Ans.4.7m/s)

Names_____________________________________________________________Date_________Pd._____

BowlingBallSpeed/VelocityActivity

Inthisactivity,abowlingballwillberolleddownaninclinedplane.Bytimingthejourneyoftheballoveramarkeddistance,youwilldetermineitsaveragespeed.Youwillthenusethattopredictthetimeitwouldtaketheballtorollbetweentwospecifiedtapemarkings.1)Usingatapemeasure,findallthedistancesonthefloorandmarkthemonthediagramabove.2)Thebowlingballwillberolledthreetimes.TimehowlongittakestheballtogetfromtheendoftheboardtomarkingE.3)Calculatetheaveragespeedoftheball.4)Usingtheaveragespeed,predicthowlongitwilltakefortheballtorollbetweenthetwolettermarkingsassignedtoyourgroup.5)Testyourpredictionbyactuallyrollingtheballandtiminghowlongittakestorollbetweenyourgroup'smarkings.DATA:

DistancefromEndofBoardtomarkingE:_______________Timing1:_______________sTiming2:_______________sTiming3:_______________sSpeed1:________m/sSpeed2:________m/sSpeed3:________m/sAverageSpeed:_______m/sCalculations:Showyourcalculationstopredicthowmanysecondsitwilltaketogobetween____and____.Predictedtime:________________ ActualTime:_____________

End of Board A B C D E

1515

Name:____________________________ Block:_____ Date:_____/_____/_____

Introduction to Position, Distance, and Displacement A. Reading Positions: When objects start moving, it is useful to be able to describe an object’s location. To describe location, imagine a meterstick is placed next to the object. The meterstick acts like a number line.

9 Objects to the right of the zero (0) have positive positions 9 Objects to the left of the zero (0) have negative positions

Examples:

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters

A. What is the position of the lightning bolt? 5 meters B. What is the position of the happy face? 1 meters C. What is the position of the sun? -4 meters

Use the number line below to give the positions of the objects (Don’t forget units!):

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters

1. What is the position of the heart? _______________________ 2. What is the position of the diamond? _______________________ 3. What is the position of the cross? _______________________ B. Locating Positions: Draw the object at the indicated locations:

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters 4. Put an “s” at the 2 m mark. 5. Put a “d” at the -6 m mark. 6. Put a “k” at the 7 m mark. 7. Put an “e” at the –1 m mark.

1616

C. Changing positions: Objects often change positions. In this activity, find the initial and final positions of objects.

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters

8. What is the initial position of the frog? _______________________ 9. What is the final position of the frog? _______________________ 10. If the frog traveled in a straight line from the initial position to the final position, what distance

did it travel? _______________________ D. Distance and Displacement: Now we will learn about two words that seem similar, but have different meanings in physics.

Distance: measurement of the actual path traveled Displacement: the straight-line distance between 2 points

¾ If an object travels in one direction in a straight line, distance traveled is EQUAL to the

displacement. ¾ Often, objects do not travel in straight lines (or they move back and forth), so distance

and displacement are NOT EQUAL. Examples:

Bessie the cow and Sally the bird both traveled from point “A” to point “B.” Sally traveled in a straight line and Bessie did not.

A. What distance does Bessie the cow travel? 25 meters B. What distance does Sally the bird travel? 10 meters C. What is Bessie the cow’s displacement? 10 meters D. What is Sally the bird’s displacement? 10 meters

initialfinal

AB 10 meters

25 meters

1717

11. If the car travels once around the racetrack, what distance does it travel? _______________ 12. If the car travels twice around the racetrack, what distance does it travel? ______________ 13. If the car travels once around the racetrack, what is its displacement? _________________ E. Showing Displacement:

� When an object moves, an arrow can be drawn to show the displacement � The arrow points in the direction of motion

9 The arrow should start (non-arrow side) at the starting position and end (arrow side) at the ending position

9 The arrow should be straight � Examples:

9 A school bus

9 A bike moving along a number line, from a position of 4 m to –3m

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters

9 Any object, using “xi“ to represent the initial position and “xf“ to represent the final position. (In this case, the object moves from the –6 m position to the 3 meter position.)

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters

the track is 100 meters around

initial

final

initial final

xi xf

1818

14. Draw an arrow showing an object that moves from the –4 m position to the 5 m position.

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters 15. Draw an arrow showing an object that moves from the 7 m position to the 1 m position.

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters F. What about direction?:

� Displacement also includes direction! � Possible directions include:

9 positive or negative 9 left or right 9 up or down 9 north, south, east, or west

� In this class, we will often use positive and negative to show direction. 9 A displacement is negative if the arrow points to the left or down 9 A displacement is positive if the arrow points to the right or up

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters 16. Is the above displacement positive or negative? ____________________ G. Calculating Displacement:

� Remember: Displacement is the straight-line distance between 2 points. � To give a displacement we should give both the size and the direction. � To find the size of the displacement, count the number of spaces from the initial

to the final position. � The following shows a displacement of –5 m

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters

xixf

xi xf

1919

� The following shows a displacement of +3 m

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters

� The following shows a displacement of +4 m

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters Use the number line below to answer the following questions:

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters 17. Draw an arrow to show the displacement. 18. Is the initial position positive or negative? ____________________ 19. Is the final position positive or negative? ____________________ 20. Is the displacement positive or negative? ____________________ 21. What is the displacement [size (with units) and direction (+ or -)]? ____________________ Use the number line below to answer the following questions:

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters 22. Draw an arrow to show the displacement. 23. Is the initial position positive or negative? ____________________ 24. Is the final position positive or negative? ____________________ 25. Is the displacement positive or negative? ____________________ 26. What is the displacement [size (with units) and direction (+ or -)]? ____________________

xi xf

xi xf

xi xf

xixf

2020

-6-7 -5 -4 -3 -1-2 0 21 3 54 6 7

Meters

27. Use the above number line to help answer the following question: Freddy the cat started at the –3 meter position. He then walked to other locations. Mark each new location with the letter for that part.

a. Freddy started at the –3 m position. (mark this position with an “a”) b. First, Freddy walked 2 meters in the positive direction (right) to the –1 m position. c. Second, Freddy walked 5 meters in the positive direction to the +4 m position. d. Third, Freddy walked 1 meter in the negative direction to the +3 m position. e. Finally, Freddy walked 8 meters in the negative direction to the –5 m position.

f. Draw a displacement arrow that starts at Freddy’s initial position (-3 m) and ends

at Freddy’s final position (-5 m).

g. What was Freddy’s total displacement? (for this, you only need to look at his initial and final position) (be sure to include sign, number, and units)

____________________

h. To get the distance Freddy traveled, add up all the distances:

2m + 5m + 1m + 8m = ______________ meters

i. Is Freddy’s total displacement equal in size to Freddy’s total distance traveled?

2121

ABRHS PHYSICS (CP) NAME: ________________

Acceleration Concept Sheet

side 1

To help get a better understanding of the difference between speed and acceleration, let’s imagine taking a snapshot of where an object is once every single second for several seconds. For this sheet, let’s also keep things a little straightforward and always say that the pictures show things moving to the right, and never going backwards.

Questions 1 to 5 refer to the following picture.

Start

1. What is true about the distance between each position? 2. What is true about the average speed between each position? 3. Sketch what it would look like if it was going twice as fast:

4. Sketch what it would look like if it was going half as fast:

5. If an object has a constant speed what is happening? (In other words, what is meant by the

phrase “constant speed?” Questions 6 to 7 refer to the following picture. Something very important is different.

Start

6. What is true about the distance between each position? 7. What is true about the average speed between each position? 8. Was this speeding up or slowing down. How do you know?

2222

ABRHS PHYSICS (CP) NAME: ________________

Acceleration Concept Sheet

side 2

Questions 9 to 11 refer to the following picture.

Start

9. What is true about the distance between each position? 10. What is true about the average speed between each position? 11. Was this speeding up or slowing down. How do you know? Questions 12 to 14 refer to the following picture.

Start

12. What is true about the distance between each position? 13. What is true about the average speed between each position? 14. Was this speeding up or slowing down (Be careful!) How do you know? 15. Where was it going the fastest? How about the slowest? Questions 16 to 20 refer to the graph shown to the right. 16. Describe the motion shown by the graph. 17. Each second, how much faster is the object moving? 18. What is the slope of the graph? 19. What is the acceleration of the object? 20. What could the object be?

20

40

60

2 4 6 t (s)

V(kph)

2323

(m/s)

Physics Name: ________________________ Date: _________________

ACCELERATION EXAMPLES 1. A train moving north at 20 m/s accelerates to 43 m/s in 15 s. Calculate the

acceleration of the train. Given: Find:

2. A plane landing on a runway decelerates from +75 m/s to a stop in 30 s. Calculate the acceleration of the plane. Given: Find:

3. At the start of a race, a sprinter accelerates from rest at –2 m/s2. How long does it take to reach his final velocity of –6.5 m/s? Given: Find:

4. A bus accelerates from 8 m/s east to 15 m/s east at a rate of 3 m/s2. How long does it take to reach the final velocity? Given: Find:

5. Pressing the brakes slows a car from +25 m/s to +9 m/s in 11 s. What is the acceleration of the car? Given: Find:

24

[Ans. 1.53 m/s ]2

[Ans. -2.5 m/s ]2

[Ans. 3.25 s ]

[Ans. 2.33 s ]

[Ans. -1.45 m/s ]2

24

[Ans. 1.53 m/s ]2

[Ans. -2.5 m/s ]2

[Ans. 3.25 s ]

[Ans. 2.33 s ]

[Ans. -1.45 m/s ]2

From The Physics Classroom’s Physics Interactive http://www.physicsclassroom.com !

©The Physics Classroom, All Rights Reserved This document should NOT appear on other websites.

!

Name%That%Motion%Interactive%!!The!Name!That!Motion!Interactive!includes!11!animations,!each!of!which!must!be!matched!to!one!of!the!following!verbal!descriptions:!!!

Verbal Description A. The car moves with a rightward velocity and a rightward acceleration. B. The car moves with a constant, leftward velocity. Then, the car remains at rest for several

seconds. Finally, the car moves with rightward acceleration. C. The car moves with a constant, leftward velocity. D. The car moves with a rightward acceleration. Then, the car remains at rest for several

seconds. Finally, the car moves with a low constant speed. E. The car moves with constant speed in the rightward direction. F. The car slowly accelerates from rest. Then, the car remains at rest for several seconds.

Finally, the car moves with a constant leftward velocity. G. The car moves at constant speed. Then, the car remains at rest for several seconds.

Finally, the car moves with a constant leftward velocity. H. The car moves in the rightward direction with a leftward acceleration. I. The car moves in the leftward direction with a leftward acceleration. J. The car moves with a constant, rightward velocity. Then the car remains at rest for several

seconds. Finally, the car rapidly accelerates with a rightward acceleration. K. The car moves with a leftward velocity and a rightward acceleration. !

2525

Physics Name: ________________________ Date: ___________________

ACCELERATION PROBLEMS

1. A bus accelerates from rest to 24 m/s east in 8.2 s. What is the acceleration of the bus? Given:

Find:

2. A motorcycle slows from 15 m/s north to 9 m/s north in 3 s. What is the acceleration of the motorcycle? Given:

Find:

3. A ball is kicked and it accelerates from rest to 11 m/s south in 0.4 s. What is the acceleration of the ball? Given:

Find:

4. A treadmill accelerates from +1.5 m/s to +4 m/s in a time of 2 minutes. What is the acceleration of the treadmill? Given:

Find:

5. A bicycle moving at 13 m/s is brought to a stop in 5.5 s. What is the acceleration of the bicycle? Given:

Find:

6. A shuttle bus slows down with an acceleration of – 1.5 m/s2. How long will it take the bus to stop when it is moving at 14 m/s? Given:

Find:

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[Ans. 2.93 m/s east]2

[Ans. -2 m/s north]2

[Ans. 27.5 m/s south]2

[Ans. .021 m/s ]2

[Ans. -2.36 m/s ]2

[Ans. 9.33 s]

26

[Ans. 2.93 m/s east]2

[Ans. -2 m/s north]2

[Ans. 27.5 m/s south]2

[Ans. .021 m/s ]2

[Ans. -2.36 m/s ]2

[Ans. 9.33 s]

Mixed Velocity/Acceleration Practice

1. What is the speed of a rocket that travels 9000 meters in 12.12 seconds?

2. What is the speed of a jet plane that travels 528 meters in 4 seconds?

3. How long will your trip take (in hours) if you travel 350 km at an average speed of 80 km/hr?

4. How far (in meters) will you travel in 3 minutes running at a rate of 6 m/s?

5. A trip to Cape Canaveral, Florida takes 10 hours. The distance is 816 km. Calculate the average speed.

6. How many seconds will it take for a satellite to travel 450 km at a rate of 120 m/s?

7. What is the speed of a walking person in m/s if the person travels 1000 m in 20 minutes?

8. A ball rolls down a ramp for 15 seconds. If the initial velocity of the ball was 0.8 m/sec and the final velocity was 7 m/sec, what was the acceleration of the ball ?

9. A meteoroid changed velocity from 1.0 km/s to 1.8 km/s in 0.03 seconds. What is the acceleration of the meteoroid?

10. A car going 50mph accelerates to pass a truck. Five seconds later the car is going 80mph. Calculate the acceleration of the car.

11. The space shuttle releases a space telescope into orbit around the earth. The telescope goes from being stationary to traveling at a speed of 1700 m/s in 25 seconds. What is the acceleration of the satellite?

12. A ball is rolled at a velocity of 12 m/sec. After 36 seconds, it comes to a stop. What is the acceleration of the ball?

13. A dragster in a race accelerated from stop to 60 m/s by the time it reached the finish line. The dragster moved in a straight line and traveled from the starting line to the finish line in 8.0 sec. What was the acceleration of the dragster?

27

(Ans 742.6 m/s)

(Ans 132 m/s)

(Ans 4.38 hr)

(Ans 1080 m)

(Ans 22.7 m/s)

(Ans 3750 s)

(Ans .83 m/s)

(Ans .41 m/s )2

(Ans 26,667 m/s ) 2

m/sm/s (Ans 6 m/s ) 2

(Ans 68 m/s ) 2

(Ans -.33 m/s ) 2

(Ans 7.5 m/s ) 2

27

(Ans 742.6 m/s)

(Ans 132 m/s)

(Ans 4.38 hr)

(Ans 1080 m)

(Ans 22.7 m/s)

(Ans 3750 s)

(Ans .83 m/s)

(Ans .41 m/s )2

(Ans 26,667 m/s ) 2

m/sm/s (Ans 6 m/s ) 2

(Ans 68 m/s ) 2

(Ans -.33 m/s ) 2

(Ans 7.5 m/s ) 2

Name_______________________________________________________Date______________Pd._______

Physics:Unit0TestReview1.Convertasindicatedbelow.Showyourworkandyourconversionfraction:

2.Fillintheblanksbelow.(Thesearesamplesofhowyoumaybeaskedfordifferentvocabularywords.)a)Inanexperiment,thevariablethatwehavethecontroltochangeiscalledthe________________variable.b)Adisplayofdatathatappearsasjustasetofpointsspreadacrossagraphiscalleda__________________.c)TheprefixMILLImeans_____________________________.d)0.00000567isanexampleofanumberwrittenin__________________________Notation.3.ScientificNotationvs.StandardNotation.Performtheindicatedoperationsbelow.a)Convert345,700,000toScientificNotation ________________________b)Convert.000681toStandardNotation ________________________c)Add:(1.12x104)+(7.08x105)WriteyouranswerinDecimalNotation. ________________________d)Divide:(5x10-3)/(8x10-12)WriteyouranswerinScientificNotation. ________________________e)Writethenumber24.07x10-6inproperScientificNotation. ________________________4.

UsetheFrameofReferenceabovetofindthedistanceanddisplacementforthefollowingjourneys:a)BtoAtoB b)DtoAtoC c)BtoDtoAtoC

a)12km=_____m

b)15mm=_____cmc).315kg=_____g d)4.28L=_____mL e)23g=_____mg

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Scientific

5.Anobjectistravelingataspeedof3.7m/s.Howlong,inseconds,willittakefortheobjecttotravel12,000m?(Ans.3,243sec.)6.Asharkischasingafish.Thefishstartsfromrestandacceleratesatarateof3.2m/s2.Howfastwillthefishbetravelingafter5seconds?(ShowallPVATinformation,formula,work,andunits!)(Ans.16m/s)7.Apersononamotorcycleistraveling17m/sandappliesthebrakesfor3seconds,slowingdowntoavelocityof8m/s.Findtheaccelerationofthemotorcycle.(Ans.-3m/s2)8.Awomanruns5m/sfor13seconds,thenruns3m/sfor20seconds,andthenruns6m/sfor25seconds.Findheraveragespeedfortheentirerun.(Ans.4.3m/s)9.Whatdistancewillanobjecttravelin25secondsifitismovingataspeedof35m/s?(Ans.875m)10.IfIridemybiketoworkataspeedof12m/s,howmanysecondswillittakemetoridetheentirejourneyof2,500m?(Ans.208sec.)11.Identifyeachofthefollowingasa'speed'ora'velocity':a)3m/sb)-3m/sc)12mphnorthd)5ft.in7seconds

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4.7 m/s

FamousPhysicistsPosterProjectEach group will create a Physics Poster spotlighting a famous Physicist. The Poster will include a title and three columns: Biographical Information, Theories/Discoveries, and Modern-Day Applications. Each column must contain at least one picture (either printed and color-enhanced or else drawn completely freehand) and there must be a total of 5 or more pictures on the poster. The Biographical Information column should contain all vital statistics as well as a brief description of education, important positions or posts held, and any unique obstacles that the person had to overcome in their personal life or in society. The Theories/Discoveries column should highlight two to three important discoveries made by the person or theories they pioneered. The Modern-Day Applications column should show two to three practical applications to which the person's theories or discoveries have been applied. Posters will be graded on a 25-point rubric: Completeness: (All required items included on poster) 5 points Visual Appeal: (Organized, attractive layout. Use of color. Neatness. All items of importance on poster labeled.) 5 points Subject Knowledge: (Well researched; subject knowledge is evident throughout. All information is clear, appropriate & correct. Graphics are relevant and add to the understanding of the topic.) 5 points Spelling and Grammar: (Care has been taken to proofread and ensure accuracy and comprehensibility.) 5 points Collaboration: Written description on back of poster detailing the contributions of each group member. 5 points

Name of Physicist(Yr. of Birth - Yr. of Death)

Biog. Info. Theories /Discoveries

Modern Applications

Group Names

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SUPPLEMENTAL PROBLEMS

Dimensional Analysis Facts Sheet

POWERS of TEN Thousand = 103 Million = 106 Billion = 109 Trillion = 1012 Quadrillion =1015 Quintillion = 1018 DISTANCE UNITS Parsec = 1.91738 X 1013 miles Furlong = 1/8 mile Rod2 = 1.00000400417 Perch Rod = 16.5 feet Rod = 25.000 links Football field = 100 yards Soccer field = 100 METERS Rod = 5.50 yards Fathom = 6 feet Yard = 3 feet foot = 12 inches inch = 2.54 centimeters (exactly) centimeter = 10 millimeters decimeter = 10 centimeters meter = 100 centimeters 5280 feet = 1 mile dekameter or decameter= 10 meters Walking pace (avg) = 31 inches Story on a building = 3 m Light year = 9.467 X 1015 meters Barn = 10-24 cm2 League = 3 miles Cubit = 20 inches 4 rods = chain ROTATIONS 1 Revolution = 360° 2π Radians = 1 Revolution

TIME UNITS millennium = 1,000 years century = 100 years decade = 10 years years = 365 days day = 24 hours hour = 60 minutes minute = 60 seconds Blink of an eye 1/10 second fortnight = 14 days 1 score = 20 years WEIGHTS and METRIC MASSES Pound = 16 ounces Ton = 2000 pounds Tonne = 1000 kilograms (metric ton) Long ton = 2240 pounds Gram = 1000 milligrams Kilogram = 1000 grams Kilogram = 2.205 pounds Pound = 453.5923 grams Newton = 7.233014 Poundal Dram = 27.34375 grains Pound= 7000 grains Pound = 4.448 Newtons Poundal = 14.0980814039 gram Pennyweight = 24 grains Stone = 14 pounds Clove = ½ Stone VOLUME MEASUREMENTS 1 liter = 1000 milliliters 2 liters = 67.63 ounces 1 gallon = 128 ounces 1 milliliter = cm3 1 milliliter = 20 drops 2 pints = 1 quart 4 quarts = 1 gallon peck = 2 gallons

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1-10 95 90 85 80 75 70 65 60 55 5011-20 45 40 35 30 25 20 15 10 5 0

1) 8.86 × 10-2

2) 1 × 103

3) 8.61 × 10-2

4) 3 × 10-1

5) 9.971 × 10-1

6) 8.6 × 100

7) 4.1 × 106

8) 6.2 × 10-6

9) 7.5 × 10-6

10) 7.13 × 104

Convert from standard form to scientific notation.

11) 0.000004

12) 2

13) 0.464

14) 2.9

15) 4,390

16) 9

17) 0.7683

18) 151

19) 0.0985

20) 85

1. 0.0886

2. 1,000

3. 0.0861

4. 0.3

5. 0.9971

6. 8.6

7. 4,100,000

8. 0.0000062

9. 0.0000075

10. 71,300

11. 4 × 10-6

12. 2 × 100

13. 4.64 × 10-1

14. 2.9 × 100

15. 4.39 × 103

16. 9 × 100

17. 7.683 × 10-1

18. 1.51 × 102

19. 9.85 × 10-2

20. 8.5 × 101

Convert from scientific notation to standard form.Converting Scientific Notation


Name:

Answers

2 3333

1-10 92 83 75 67 58 50 42 33 25 1711-12 8 0

1) 4 meters and 3 centimeters = 403 centimeters

2) 3 kilometers and 8 meters = 3,008 meters

3) 7 centimeters and 9 millimeters = 79 millimeters

4) 1 meter and 5 centimeters = 105 centimeters




8) 9 kilometers and 1 meter = 9,001 meters





1. 403

2. 3,008

3. 79

4. 105

5. 5,005

6. 52

7. 508

8. 9,001

9. 23

10. 808

11. 8,003

12. 94

Solve each problem.

Converting Mixed Metric Lengths


Name:

Answers

1 3434

The Concepts of Kinematics Students will be able

• Define the concepts of displacement, velocity and acceleration, • Calculate changes in displacement or velocity without math or graphs.

Problems: 1. A runner is moving with a velocity of 4 m/s when he accelerates at 2 m/s for 3 seconds.

How fast is he traveling now?

2. In a football game, the running back is at the 10 yard line and running up the field towards the 50 yard line, (10, 20, 30, 40 yard line etc.) and runs for 3 seconds at 8 m/s. What is his current position?

3. A cat is moving at 18 m/s when it accelerates at 4 m/s for 2 seconds. What is his new velocity?

4. A race car is traveling at 76 m/s when it slows down at 9 m/s for 4 seconds. What is its new velocity?

5. An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. How high above the round is the ship after 5 seconds?

6. A bicyclist is traveling at 25 m/s when he begins to decelerate at 4 m/s . How fast is he traveling after 5 seconds?

7. A squirrel is 5 ft away from your while moving at a constant velocity of 3 ft/s away from you. How far away is the squirrel after 5 seconds?

8. A ball is dropped off a very tall canyon ledge. Gravity accelerates the ball at 22 mph/s. How fast is the ball traveling after 5 seconds?

9. During a race, a dragster is 200 m from the starting line and something goes wrong and it stops accelerating. It travels at a constant velocity of 100 m/s for 3 seconds to try to finish the race. How far from the starting line is the dragster after 3 seconds?

10. A dog is 60 yards away while moving at a constant velocity of 10 yds/s towards you. Where is the dog after 4 seconds?

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2

2

2

2

2

Time-PositionGraphsI

ForeachDotDiagrambelow,plotaTime-Positiongraph,connectthepoints,thenusethegraphtoanswerthequestions.1)a)Findtheaveragevelocityat2seconds.___________________b)Findtheaveragevelocityat5seconds._____________________c)Findtheslopeoftheline.(ShowWork.)________________________d)Whatistheaccelerationoftheobject?(Explain)____________________________________________________________________________________2)Findtheaveragevelocityfrom:

0-1second 1-2seconds 2-3seconds 3-4seconds

Whatistheaccelerationoftheobject?(Explain)___________________________________________________________________________________3)Findtheaveragevelocityfrom:

0-1second 1-2seconds 2-3seconds 3-4seconds

Whatistheaccelerationoftheobject?(Explain)______________________________________________________________________________________

2

141210

8

64

20

1816

0 54321Time (s)

Pos

ition

(m)

2

141210

8

64

20

1816

0 54321Time (s)

Pos

ition

(m)

2

141210

8

64

20

1816

0 54321Time (s)

Pos

ition

(m)

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ForeachTime-Positiongraphbelow,useslopetodeterminetheaveragevelocityeachsecond,thenusethevelocitiestodeterminetheacceleration. Acceleration:__________________ Acceleration:__________________ Whatisthepositionoftheobjectafter4seconds? Acceleration:____________________ Whathappensbetweenthe3rdand4thsecond?

0-1second 1-2seconds 2-3seconds



2

141210

8

64

20

1816

0 54321Time (s)

Pos

ition

(m)

2

141210

8

64

20

1816

0 54321Time (s)

Pos

ition

(m)

2

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8

64

20

1816

0 54321Time (s)

Pos

ition

(m)

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Time-VelocityGraphsI1)UsetheP/TgraphgiventocreateaV/Tgraphfortheobjectrepresented.a)Duringwhattime(s)istheobjectmovingforward?b)Duringwhattimeintervaldoestheobjecthavethegreatestvelocity?c)Duringwhattimeintervalsdoestheobjecthavethesamespeed?2)UsetheV/Tgraphtoanswerthefollowingquestions:a)Atwhattime(s)istheobjectmovingwithaconstantvelocity? b)Atwhattime(s)istheobjectnotmoving?c)Atwhattime(s)istheobjectmovingbackwards?d)Duringwhattimeintervalsdoestheobjecthavepositiveacceleration?Negativeacceleration?Zeroacceleration?3)UsetheV/Tgraphtocalculatethefollowingquantities:a)Thedistancetheobjecttraveledbetween0and2seconds.b)Thedistancetheobjecttraveledbetween2and4seconds.c)Thedistancetheobjecttraveledfrom0to10seconds.

Time (s)

Position (m)

0

5

10

-5

-10

2 4 6 8 10Time (s)

Velocity (m/s)

0

5

10

-5

-10

2 4 6 8 10

Time (s)

Velocity (m/s)

0

5

10

-5

-10

2 4 6 8 10

Time (s)

Velocity (m/s)

0

5

10

-5

-10

2 4 6 8 10

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Graphing)Motion))

x)vs)t)graphs))At)Rest) ) ) ))))))))Constant)Velocity) )))))))))))Constant)Acceleration))) ) ) ))))))x) ) ) ) ))))))x) ) ) ) )))))))))x))))))) ) ) ))))t) ) ) ) )))))))))))t)) ) ) ))))))))))))t))For)all)x)vs)t)graphs,)the)slope)=)average)velocity.)))

v)vs)t)graphs))At)Rest) ) ) ))))))))Constant)Velocity) )))))))))))Constant)Acceleration))) ) ) ))))))v) ) ) ) ))))))v) ) ) ) )))))))))v))))))) ) ) ))))t) ) ) ) )))))))))))t)) ) ) ))))))))))))t))For)all)v)vs)t)graphs,)the)slope)=)average)acceleration)and)the)area)under)the))graph)=)displacement.)))

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Physics Packet Unit 0 - PBworks

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