Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Forces and Motion
367 practice questions
Topics covered
Practice questions
111–120 of 181 · Normal
Question 111
3 marks · Normal
Answer and see the solution →A car and a bicycle are both acted on by the same unbalanced force. The car’s mass is much greater than the bicycle’s mass. Use the relationship F = m x a to explain, in terms of acceleration, what happens to each vehicle.
Question 112
4 marks · Normal
Answer and see the solution →A laboratory experiment investigates the effect of force and mass on acceleration using a trolley, a ramp, and hanging masses.
(a)[2 marks]Describe how you could set up an experiment to test how the force on the trolley affects its acceleration, keeping the mass constant.
(b)[2 marks]Explain how your results might be used to show the proportionality between force and acceleration.
Question 113
3 marks · Normal
Answer and see the solution →A car of mass 1,000 kg experiences a forward driving force of 4,000 N and a frictional force of 1,200 N in the opposite direction. Calculate the acceleration of the car. Show all your working.
Question 114
3 marks · Normal
Answer and see the solution →A boat of mass 600 kg is acted on by an unbalanced force of 1,800 N as it speeds up to leave a dock.
Calculate the acceleration of the boat. Give your answer in m/s to 2 significant figures.
Question 115
4 marks · Normal
Answer and see the solution →A train of mass 2,000 kg leaves a station and accelerates along a straight track.
(a)[1 mark]State the equation that links force, mass, and acceleration. Use scientific symbols.
(b)[2 marks]If the resultant force on the train is 5,000 N, calculate the acceleration of the train.
(c)[1 mark]Explain what would happen to the acceleration if the mass of the train were doubled but the resultant force remained the same.
Question 116
4 marks · Normal
Answer and see the solution →A student investigates the effect of unbalanced force on the acceleration of a trolley, using the apparatus shown.
Trolley on a sloping ramp, pulled by a hanging mass over a pulley. (a)[2 marks]Describe how the student could measure the acceleration of the trolley in this experiment.
(b)[2 marks]The mass of the trolley and the hanging weights is 1.8 kg. If the total unbalanced force is 5.4 N, calculate the acceleration of the trolley.
Question 117
3 marks · Normal
Answer and see the solution →A sports car and a large van each experience the same unbalanced force when accelerating from rest. The mass of the van is four times larger than the mass of the car.
Use the relationship F = m × a to explain, in detail, which vehicle will have greater acceleration and why.
Question 118
3 marks · Normal
Answer and see the solution →A cyclist travels along a road on a foggy morning. Suddenly, a dog runs out in front of them. The cyclist has good brakes and new tyres, but still almost hits the dog.
Explain two reasons, using your knowledge of physics, why the cyclist nearly failed to stop in time. (3)
Question 119
3 marks · Normal
Answer and see the solution →A car and a heavy lorry both apply their brakes with the same force while travelling at the same speed on a dry road. The lorry travels further before stopping.
Explain why the lorry takes longer to stop than the car, even though the braking force is the same.
Question 120
2 marks · Normal
Answer and see the solution →State two factors (other than the speed of the vehicle) that can increase the thinking distance of a driver.