WeyPhys KS3 Motion

What is the correct formula to calculate speed?

• Speed = distance x time

• Speed = distance + time

• Speed = distance/time

• Speed = time/distance

An athlete runs 200 m in 20 seconds. What is his average speed?

• 220 m/s

• 10 m/s

• 20 m/s

• 15 m/s

A woman walks 2 km to the shops and back in 30 minutes. What was her average speed?

• 1.4 m/s

• 3.1 m/s

• 2.1 m/s

• 1.1 m/s

A boy cycles 1800 m at an average speed of 5 m/s. How long did this take

• 360 minutes

• 3 hours

• 36 seconds

• 6 minutes

How long would it take to travel from John O'Groats to Lands End (1407 km) if you cycled non-stop at an average speed of 7.0 m/s?

• 36 hours

• 46 hours

• 56 hours

• 66 hours

Describe the motion in this distance-time graph from 17:15 to 17:45

• Constant acceleration

• Stopped

• Reversing at a constant speed

• Constant velocity

Describe the motion from 17:45 to 17:53

• Stationary

• At maximum velocity

• Constant acceleration

• Dcelerating

What does this distance - time graph show?

• Constant velocity

• A stationary object

• Acceleration

• Deceleration

What was the cyclist's speed from 0 to 30 seconds?

• 2.5 m/s

• 3.3 m/s

• 4.0 m/s

• 5.0 m/s

How long did the cyclist stop for?

• 10 seconds

• 15 seconds

• 20 seconds

• 25 seconds