CHAPTER 2 – REPRESENTING MOTION MULTI -Q INTRO DUCTI ON Welcome to … Skip Rules.

CHAPTER 2 – REPRESENTING MOTION

Welcome to …Welcome to …

Skip Rules

CHOOSE FROM

THE FOLLOWING

TOPICS

You will choose You will choose questions from questions from the following the following

six topic areas:six topic areas:

CLICK TO VIEW TOPIC AREAS CLICK TO VIEW TOPIC AREAS

Position-Time

What do you know about…What do you know about…What do you know about…What do you know about…


Velocity-Time


Measurements

Scalars & Vectors


MULTIQ CHOICES

Position-Position-TimeTime

Velocity- Velocity- TimeTime

Measure-Measure-mentsments

Scalars & Scalars & VectorsVectors

10 10 10 10 10 10

20 20 20 20 20 20

30 30 30 30 30 30

40 40 40 40 40 40

50 50 50 50 50 50FINAL QUESTIONFINAL QUESTIONFINAL QUESTIONFINAL QUESTION

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to the Multi-Q Game Board

1:10

How can you find

displacement on a x-t graph?

CLICK TO CHECKCLICK TO CHECK

T o p i c 1 f o r 1 0 p o i n t s …T o p i c 1 f o r 1 0 p o i n t s …T o p i c 1 f o r 1 0 p o i n t s …T o p i c 1 f o r 1 0 p o i n t s …

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R T h e c o r r e c t a n s w e r i s …T h e c o r r e c t a n s w e r i s …T h e c o r r e c t a n s w e r i s …T h e c o r r e c t a n s w e r i s …

y-axis y-axis

CLICK TO PLAY AGAINCLICK TO PLAY AGAIN

10

Click here to return to the Multi-Q Game Board

How do you find instantaneous

velocity?

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Slope of the tangent lineSlope of the tangent line


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How do you find average

velocity?

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30

Plug position values Plug position values and time interval into and time interval into

equationequation

V = ∆x / tV = ∆x / t

Plug position values Plug position values and time interval into and time interval into

equationequation

V = ∆x / tV = ∆x / t

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What does the What does the area of a x-t area of a x-t

graph equal to?graph equal to?

What does the What does the area of a x-t area of a x-t

graph equal to?graph equal to?

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No No MeaningMeaning

No No MeaningMeaning

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What is happening if an x-t graph has a curve like the one

below?



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It is accelerating!It is accelerating!


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How do you How do you find velocity find velocity

on a v-t on a v-t graph?graph?

How do you How do you find velocity find velocity

on a v-t on a v-t graph?graph?

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10

Y - axisY - axisY - axisY - axis

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What does the slope of a v-t

graph equal to?



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Instantaneous Instantaneous AccelerationAcceleration


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What does the area of a v-t graph equal to?



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Displacement Displacement Displacement Displacement

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How do you find average acceleration

on a v-t graph?



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Find velocities on y-axis, Find velocities on y-axis, time on x-axis and plug time on x-axis and plug

into equation:into equation:

a = a = ∆v / t∆v / t


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2:50

A car is traveling at 120 km/h going north and then turns around and travels at 120 km/h going south. Sketch a v-t graph showing the motion.



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3:10

What is the variable for displacement?



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∆∆XX


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What are the units What are the units for acceleration?for acceleration?

What are the units What are the units for acceleration?for acceleration?

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m/sm/s22


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3:30

What is the variable for velocity?



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vv


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3:40

A car traveling at 120 km/h sees a deer and slams on the breaks to come to a stop at a rate of 3 m/s2 . How long does it take the car to stop?

What is the measurement that you are solving for in the above problem?



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timetime


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3:50T o p i c 3 f o r 5 0 p o i n t s …T o p i c 3 f o r 5 0 p o i n t s …T o p i c 3 f o r 5 0 p o i n t s …T o p i c 3 f o r 5 0 p o i n t s …


A car traveling at 120 km/h sees a deer and slams on the breaks to come to a stop at a rate of 3 m/s2 . How long does it take the car to stop?

What are the measurements given in the above problem?

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Initial VelocityInitial Velocity

Final VelocityFinal Velocity

AccelerationAcceleration


50

4:10

A measurement that has both

magnitude and direction is a __________



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Vector Vector


10

4:20

Vector measurement that describes how fast an object

moves.



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Velocity Velocity


20

TRUE or False

Acceleration is a vector quantity that gets its

direction from change in velocity (∆v)(∆v).

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True True


30

4:40



A car traveling at 120 km/h sees a deer and slams on the breaks to come to a stop at a rate of 3 m/s2 . How long

does it take the car to stop?

Draw vectors for initial velocity, final velocity, and change in velocity.

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Initial velocity Initial velocity

Final velocity Final velocity


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∆∆vv∆∆vv

vvffvvff

-v-vii-v-vii

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A ball 5 m above the ground is thrown up. It goes up 5 m and then it comes

down and bounces to 7 m the first time and to 4 m the second time.

Draw the vectors showing the position of the ball.



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50

GroundGroundGroundGround

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Sketch a v-t graph for an object at rest



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10

5:20

Sketch a x-t graph for an object accelerating

with a positive displacement



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20

5:30

Sketch an a-t graph for the following v-t

graph.



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30

5:40

Type your question here



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Type the answer to Type the answer to Topic 5-40 pts hereTopic 5-40 pts here


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