physics test # 2 Flashcards Preview

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Flashcards in physics test # 2 Deck (18)
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1

tera

12

2

giga

9

3

mega

6

4

kilo

3

5

hecto

2

6

deca

symbol= da
1

7

deci

-1

8

centi

-2

9

milli

-3

10

micro

-6

11

nano

-9

12

kinetic energy

energy a body posseses by being in motion

13

potential energy

energy stored in an object

14

inertia

to remain still or unchanged

15

momentum

a quantity of motion measured in mass and velocity

16

4 rules for determining sigfigs

1. All non zero digits in a measurement are significant
2. Zeroes that come after the decimal and after a non zero digit are significant
3. Leading zeroes aren't significant
4. Trailing zeroes with no decimals are assumed to be insignificant

17

What's the rule for adding and subtracting measurements

Your calculated value should have the same precision as your least precise measurement

18

What's the rule for Multiplying and dividing

Your calculated value should have the same # of sigfigs as the measurement with the least amount of sigfigs