Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Forces and Motion
367 practice questions
Topics covered
Practice questions
151–160 of 367
Question 151
3 marks · Normal
Answer and see the solution →The graph shows the motion of a car as it accelerates uniformly from rest to 18 m/s in 6 seconds.
Figure 2. Velocity-time graph for a car accelerating (a)[2 marks]Calculate the total distance the car travels in the first 6 seconds.
(b)[1 mark]State the shape formed under the graph and briefly describe how you found the distance.
Question 152
3 marks · Normal
Answer and see the solution →A runner moves at first with increasing speed, then at a steady speed, and finally slows to a stop. Describe how her velocity–time graph would look, and explain how you would calculate the total distance travelled from the graph.
Question 153
2 marks · Normal
Answer and see the solution →What does the area under a velocity–time graph represent? Give an example of how you could find it for an object moving at constant velocity.
Question 154
5 marks · Hard
Answer and see the solution →The velocity–time graph below shows the motion of an object moving in a straight line over 12 seconds.
Velocity–time graph for an object (a)[4 marks]Calculate the total distance travelled by the object during the 12 seconds. Show your working using the area under the graph.
(b)[1 mark]Explain why the total distance travelled and the displacement of the object are equal or not equal for this motion.
Question 155
4 marks · Hard
Answer and see the solution →A trolley starts from rest and accelerates steadily. After 2 s, its velocity is 4 m/s, and after a further 3 s, its velocity is 10 m/s.
(a)[2 marks]Sketch a velocity–time graph for the motion of the trolley for the first 5 seconds.
(b)[2 marks]Calculate the total distance travelled by the trolley in 5 seconds by finding the total area under the velocity–time graph.
Question 156
4 marks · Hard
Answer and see the solution →A go-kart travels with constant velocity for 2 seconds, then slows down uniformly to a stop in the next 3 seconds.
(a)[2 marks]The initial velocity is 8 m/s. Draw a labelled velocity–time graph for the go-kart’s motion over the 5 seconds.
(b)[2 marks]Using your graph, calculate the total distance travelled by the go-kart during the 5 seconds. Show your working.
Question 157
2 marks · Easy
Answer and see the solution →A child on a scooter starts from rest and accelerates uniformly at 2 m/s² over a distance of 8 m. Calculate the speed she is travelling at the end of the 8 m.
Question 158
2 marks · Easy
Answer and see the solution →A physics student says: “If an object travels with constant acceleration, you can always use the equation to solve for any one of the variables.” Explain one limitation of this equation in solving real-life motion problems.
Question 159
3 marks · Easy
Answer and see the solution →A skateboarder moves in a straight line. She starts at 3 m/s and accelerates uniformly at 1.5 m/s² for 4 m.
(a)[1 mark]State the initial speed of the skateboarder.
(b)[2 marks]Calculate her final speed after travelling the 4 m.
Question 160
2 marks · Easy
Answer and see the solution →Describe what is meant by ‘initial speed’ and ‘final speed’ in the equation .