Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Forces and Motion
367 practice questions
Topics covered
Practice questions
51–60 of 181 · Normal
Question 51
1 mark · Normal
Answer and check →Which of the following describes velocity but not speed?
- A.Has a magnitude only
- B.Can be negative
- C.Measured in seconds
- D.Always constant
Question 52
2 marks · Normal
Answer and see the solution →State the difference between speed and velocity.
Question 53
3 marks · Normal
Answer and see the solution →The distance-time data for a moving object is shown below.
Time / s Distance / m 0.0 0.0 1.0 2.5 2.0 5.0 3.0 7.5 4.0 10.0 (a)[2 marks]Calculate the speed of the object.
(b)[1 mark]Give the correct unit for speed.
Question 54
3 marks · Normal
Answer and see the solution →A car travels at a constant speed of 20 m/s north and then turns to travel 20 m/s east. Explain how its speed and velocity change.
Question 55
4 marks · Normal
Answer and see the solution →A runner accelerates from rest to a speed of 6 m/s in 3 s.
(a)[1 mark]State the initial velocity of the runner.
(b)[2 marks]Calculate the acceleration.
(c)[1 mark]State the SI unit for acceleration.
Question 56
3 marks · Normal
Answer and see the solution →A car slows down from 18 m/s to 6 m/s in 4 seconds. Calculate its acceleration.
Question 57
2 marks · Normal
Answer and see the solution →Explain why velocity is a vector quantity but speed is a scalar quantity.
Question 58
4 marks · Normal
Answer and see the solution →A boat travels at a constant speed of 5 m/s across a river that is 100 m wide. The current flows east at 3 m/s, and the boat points directly north (perpendicular to the current).
Explain the difference between the speed of the boat and its velocity as it crosses the river. Give your answer in terms of scalar and vector quantities, and describe the actual path of the boat across the river.
Question 59
4 marks · Normal
Answer and see the solution →The table below shows the velocity of a cyclist during a 10-second journey:
Time / s Velocity / m/s 0 0 2 4 4 8 6 8 8 4 10 0 Use the information to answer the following questions.
(a)On graph paper, draw a velocity–time graph for the cyclist's journey. Label your axes.
(b)[2 marks]Describe the motion of the cyclist between 2 s and 6 s.
(b)[2 marks]Describe the motion of the cyclist between 2 s and 6 s.
Question 60
1 mark · Normal
Answer and see the solution →State what the gradient of a velocity–time graph represents.