The movement of objects can be described using motion graphs and numerical values. These are both used to help in the design of faster and more efficient vehicles.

What is the unit of speed?

Metres (m)

Metres per second (m/s)

Metres per second squared (m/s^{2})

What is the unit of acceleration?

Kilogram metres per second (kg m/s)

How long does it take a cyclist to travel 400 m if they are cycling at 8 m/s?

0.02 s

3,200 s

50 s

What is the average speed of a car that travels 80 m in 16 s?

0.2 m/s

5 m/s

1,280 m/s

What is a typical walking speed?

1.5 m/s

4 m/s

8 m/s

How is speed found from a distance-time graph?

It is the gradient of line

It is read from the vertical (y) axis

It is the area under the line

When will a skydiver be falling at terminal velocity?

When air resistance is greater than weight

When air resistance is equal to weight

When air resistance is less than weight

What quantity is the rate of change of velocity?

Displacement

Acceleration

Final velocity

A car changes its velocity from 4 m/s to 12 m/s over a time of 8 s. What is the acceleration of the car?

1 m/s^{2}

2 m/s^{2}

8 m/s^{2}

How is displacement found from a velocity-time graph? - Higher