Physics Test 1 Review

Match the following

• physics

• amount of matter in an object; measured in kilograms

• quantitative

• data/numbers collected in an experiment

• precision

• how close measurements are to each other in an experiment

• science

• learning about the world by performing experiments

• mass

• science that studies motion, forces, energy

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Match the following

• weight

• basic unit of measure based on a physical standard independent of any other unit

• law

• unit made up of a combination of 2 or more basic units

• accuracy

• force of gravity on an object in newtons

• derived

• relationship that describes what happens in a natural phenomenon; usually an equation

• fundamental

• closeness of an experimental result is to the accepted value

Put the steps of the Scientific Method in order

• Hypothesis

• Conclusion

• Problem

• Experiment

• Observation

Tags

NGSS.MS-PS2-2

Match as Significant or NOT Significant Figures

Groups:

(a) Significant

,

(b) NOT Significant

• Non-zeros (1, 3, 6 etc)

• Leading zeros

• Trailing zeros to the right of the decimal point

• In-between zeros

How many significant figures?

• 4

• 0.0004200

• 4

• 23000

• 3

• 0.000504

• 5

• 240.05

• 2

• 4.000

Convert to scientific notation: 0.0000013

• 1.3 x 10^6
• 1.3 x 10^-6

Convert to scientific notation: 723,000,000 cm

• 7.23 x 10^7 cm
• 7.23 x 10^8 cm