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