Circular Motion (Edexcel International A Level Physics)

Topic Questions

6 marks

The photograph shows a track for a toy car. The car moves down the track towards a circular loop. The loop starts at point A.

q13-wph14-04-june-2021-edexcel-int-as-and-a-level-phy

If the release point of the car is high enough, the car moves fast enough to pass point C and complete the loop, continuing to the end of the track at point D.

If the release point is too low, the car falls off the track between point B and point C.

Deduce whether a car released from a vertical height of 25 cm above point A will complete the loop and reach point D. You should assume that friction is negligible.

vertical height of point C above point A = 22 cm
mass of toy car = 33 g

(6)

How did you do?

Did this page help you?

2 marks

18th century clocks sometimes used a conical pendulum to measure regular periods of time.

A conical pendulum consists of a bob of mass m fixed to the end of a wire of length $l$ as shown. The bob is set to follow a circular path in the horizontal plane. The wire makes an angle θ with the vertical.

q12-wph14-04-oct-2021-edexcel-int-as-and-a-level-phy