Flashcards in 1D Motion Deck (20):

1

## Is distance a Scalar or Vector quantity?

### Scalar (only magnitude)

2

## Is displacement a Scalar or Vector quantity?

### Vector (both magnitude and direction)

3

## What is Kinematics?

### Study of HOW something moves; involves change in position over time; can be uniform or uniform

4

## What is the equation for Average Velocity?

###
v=Δx/Δt (units= m/s)

v= (v+vo)/2

5

## What is the equation for Instantaneous Velocity?

###
x=vΔt

v=x/Δt

6

## What is the equation for Relative Velocity?

###
Same direction: v=v1-v2

Opposite direction: v=v1+v2

7

## What does the slope of a displacement vs time graph represent?

###
v=Δx/Δt

slope= velocity

8

## What does the area of a displacement vs time graph represent?

### Nothing lolz

9

## What does the slope of a velocity vs time graph represent?

###
a=Δv/Δt

slope= acceleration

10

## What does the area of a velocity vs time graph represent?

###
x=vΔt

area= displacement

11

## What is Acceleration?

### A rate of change in velocity; vector quantity

12

## What is the equation for Average Acceleration?

### Δv=at

13

## What does it mean to have zero acceleration?

### ΣF=0; does not necessarily mean at rest, could have constant velocity

14

## What is the equation for displacement in the x-direction?

###
x=vt

v^2=vo^2+2a(Δx)

15

## What does it mean to have negative velocity?

### To have a backward motion or going back to the origin

16

## What does it mean to have a negative acceleration?

### To slow down

17

## What is the value of Gravity?

###
-9.8 m/s^2

symbol: g

18

## What is the equation for displacement in the y-direction?

### y=-1/2gt^2

19

## What is the equation for displacement in the y-direction with an initial velocity?

###
down: y=-vot-1/2gt^2

up: y=vot-1/2gt^2

20