zPhysical Science LiveLesson

Unit 1 Continued

z Best Ways to Present Data & Analysis

Data Tables will be used to organize all data in your High

School Science Courses

You will need to be able to read them to decide what

information is being presented.

z

Parts of a Whole

Changes over time between two

variables

Compare between groups

zBar Graph-show month to month comparison of each city

Best for Total Annual Rainfall

Line graph –shows difference over the year

Independent Variable increasesDependent Variable increases

Independent Variable increasesDependent Variable decreasesOr opposite (i – dec , d – inc)

k = 1Or a given

constant

Directly Proportional

Force = mass x acceleration

Force needed to lift a couch?

Which has greater mass?

Which will take greater force? Mass ↑ Force ↑

Indirectly Proportional

Cookie logic

# you eat = # left for later

….even if your lab is your kitchen

Dress Appropriately :

No open toed shoes

Tie long hair back

ALWAYS wear eye

protection

More Conversion Help / Practice

On the quiz you were asked to show an equivalent value

12cm is equal to ?

Use the units in the answer choices to see which is correct.

A) .012 km B) m C) 1,000 dm

Remember1km = 100,000

1m = 100cm1dm = 10cm

B is correct

12/100 = .12 m

Which Factor is

Correct??

200 kL to mL

1kL = ? mL

6 decimal places

10x10x10x10x10x10

= 1,000,000 times

larger than mL

We know there are

more mL than kL so

we multiply!

Put your answer in Scientific Notation

= 1.36 x 108 mm

Google doesn’t always work…

Google used 273.15 instead of our textbook/course

where you only need to use 273.

Don’t forget our equations and please do the calculations.

K = 0°C + 273

°C = K - 273

(3.2 x 104) - (2.89 x 102) =

(3.2 x 104) - (2.89 x 102) =

=32,000 – 289=31,711

= 3.2 x 104

Change to same exponent by moving decimal(320.0 x 102) - (2.89 x 102) Subtract or Add numbers

320.0 -2.89 = 317.1Now correct exponent issue but keep original exponent!

3.2 x 102 +2 more

= 3.2 x 104

(3.2 x 104) x (2.89 x 102) =

(3.2 x 104) x (2.89 x 102) =

32,000 x 289=9,248,000= 9.2 x 106

Multiply the decimals3.2 x 2.89 = 9.248

Add the exponents 4+2 = 6= 9.2 x 106

* When dividing the numerator – denominator exponent value

What type of Scientists would be studying a bacteria found on the Mars Rover during it’s time on Mars?

Hint – Two Major Branches

Life Scientists and Earth/Space Scientists

Ask QuestionsDevelop Hypothesis

Test Hypothesis

Analyze Data

Make Conclusions

Revise Hypothesis and Retest

Make Observations

Following the

Scientific Method Place

These in Correct Order

Ask Questions

Develop Hypothesis

Test Hypothesis

Analyze Data

Make Conclusions

Revise Hypothesis and Retest

Make Observations

Define a Scientific Law and a Scientific Theory. How are they different?

• Scientific law - describes a pattern found in nature

• Scientific theory - an explanation for a set of observations or experimental results

• Laws describes the patterns while theories explain the patterns.

• Theories DO NOT BECOME LAWS

Remember the Equations and complete the calcs with Sig Figs

K = #°C + 273 °C = K – 273

°C = (#°F − 32) × 5/9 °F = (#°C × 9/5) + 32

115 °F to °C

115 °F to K

-999K to °F

= 115 -32 (5/9)= 83 (5/9)= 415/946.1 °C

= 115 -32 (5/9)= 46.1 °C

46.1 + 273= 319 K

= -999 – 273= -1272°C

= -1272°C x (9/5) + 32= (-11,448 / 5) + 32

= -2,289.6 +32= -2,260 °F