Flashcards in physics chapter 2 Deck (23)

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1

## a simplified version of a motion diagram in which the object in motion is replaced by a series of single points

### particle model

2

## a series of images showing the positions of a moving object at equal time intervals

### motion diagram

3

## tells you the location of the zero point of the variable you are studying and the direction in which the values of the variable increase

### coordinate system

4

## the point at which both variables have the value zero

### origin

5

## quantities that have both size (magnitude) and direction

### vectors

6

## quantities that are just numbers without any direction

### scalars

7

## the vector that represents the sum of the other two vectors

### resultant

8

## time, distance, temperature, volume, speed

### scalars

9

## increase/decrease in temperature, velocity

### vector

10

## the difference between two times

### time interval

11

## change in position

### displacement

12

## data presented by plotting the time data on a horizontal axis and the position data on a vertical axis

### position-time graph

13

## the speed and direction of an object at a particular instant

### instantaneous position

14

## the slope of a position-time graph for an object

### average velocity

15

## absolute value of the slope of a position-time graph

### average speed

16

## the slope of the line tangent to the curve on a position-time graph at a specific time is the...

### instantaneous velocity

17

## the magnitude of a vector is always

### positive

18

## the distance and direction between two positions

### displacement

19

## displacement

### vector quantity

20

## a quantity that tells you only magnitude

### scalar quantity

21

## ratio of total distance traveled to the time interval

### average speed

22

## the magnitude of velocity

### speed

23