Speed and acceleration

1

Which statement best describes average speed?

2

What unit is average speed measured in?

3

What is the relationship that describes average speed?

4

What is the average speed of a car that travels 500\, m in 20\, s?

5

Which of the following is an example of instantaneous speed?

6

How can we tell how big the acceleration of an object is from its speed-time graph?

7

How do we know from its speed-time graph if an object is slowing down (decelerating)?

8

What unit is acceleration measured in?

9

What is the relationship that describes acceleration?

10

What unit is time measured in?

11

What is the acceleration of a car that accelerates from 0\, m\,s^{-2} to 25\, m\,s^{-2} in 5 seconds?