Physics Flashcards Preview

Science 10 Final > Physics > Flashcards

Flashcards in Physics Deck (29):
1

What are manipulated and responding variables?

Manipulated: Variable the designer alters
Responding: The result

2

What are the four rules of sig digs?

- No zeros
- Trailing zeros
- Trapped zeros
- Leading zeros

3

What is the rule of certainty?

Least amount of sigdigs in a question

4

What is uniform motion?

Constant ratio of speed
-Straight line when on a graph

5

V=?

V=D/T

6

D=?

D=VxT

7

T=?

T=D/V

8

What is velocity measured in?

M/S or KM/HR

9

What is fundamental?

Base units for time(s), mass(kg), length(m)

10

What is derived?

Two fundamental units combined (m/s) or (km/hr)

11

What is non-uniform motion

Changing rate of speed

12

What are the units used for acceleration?

(M/S^2) or (KM/Hr^2)

13

What is the formula for work?

W=FxD

14

Rearrange the work formula

F=W/D

D=FxA

15

What is work?

A force applied to an object causing it to be displaced

16

Hat energy is gained when work is put into it?

Potential (Ep)

17

What is a force?

A push or pull

18

What are the transformations of energy?

Motion, shape, temperature

19

Write a transformation of energy

Solar>chemical>mechanical

20

Potential energy is_______

Stored

21

Em=

Em= Ep+Ek

22

Kinetic energy is_______

Motion

23

Ep=?

Ep=mgh

24

Rearrange the Ep formula for M and H

H=Ep/mg

M=Ep/gh

25

What number stands for gravity

9.81 m/s^2

26

What are the two laws of thermodynamics?

-Energy cannot be created, simply rearranged
-Energy flows from hot to cold

27

Ek=?

Ek=1/2MxV^2

28

What is efficiency

How well it converts energy

29

How do you find efficiency?

Output/Input