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Pearson Edexcel International GCSE
Physics — Topic 1 Paper 1
Forces and Motion · specification 1.1, 1.3–1.24
Time allowed: 30 minutes
Total marks: 25
Candidate name:
Centre / class:
Answer all questions. You may use a calculator. Take $g = 10\,\text{N/kg}$. Show your working.
1
The velocity–time graph shows the motion of a runner on a straight track.
(a) Calculate the acceleration of the runner between $0$ and $4.0\,\text{s}$.
[2]
(b) Calculate the total distance travelled by the runner in $14\,\text{s}$.
[4]
(Total for Question 1 = 6 marks)
2
A car of mass $1200\,\text{kg}$ travels in a straight line. The driving force is $3600\,\text{N}$ and the total resistive force is $1200\,\text{N}$.
(a) Calculate the resultant force on the car.
[2]
(b) Calculate the acceleration of the car.
[2]
(c) The driver sees a hazard. The thinking distance is $12\,\text{m}$ and the braking distance is $36\,\text{m}$.
(i) State the stopping distance of the car.
[1]
(ii) The road is wet. Explain what happens to the stopping distance. Refer to thinking distance and braking distance.
[2]
(Total for Question 2 = 7 marks)
3
A skydiver jumps from an aircraft and falls towards the Earth. After some time she reaches terminal velocity.
(a) Name the two forces that act on the skydiver as she falls.
[2]
(b) Explain, in terms of the forces acting, why the skydiver reaches a terminal velocity.
[4]
(Total for Question 3 = 6 marks)
4
A student investigates how the extension of a helical spring varies with the applied force.
(a) Describe a method the student could use to obtain the data needed to plot a graph of force against extension.
[3]
(b) The table shows some of the student’s results.
Force / N
0
2.0
4.0
6.0
8.0
Extension / cm
0
2.5
5.0
7.5
12.0
(i) State whether the spring obeys Hooke’s law between $0$ and $6.0\,\text{N}$. Use the data to explain your answer.
[2]
(ii) Suggest why the $8.0\,\text{N}$ result does not fit the same pattern.
[1]
(Total for Question 4 = 6 marks)
END OF PAPER 1
Pearson Edexcel International GCSE
Physics — Topic 1 Paper 2
Forces and Motion · specification 1.1, 1.3–1.24
Time allowed: 30 minutes
Total marks: 25
Candidate name:
Centre / class:
Answer all questions. You may use a calculator. Take $g = 10\,\text{N/kg}$. Show your working.
1
The velocity–time graph shows a cyclist on a straight road.
(a) Calculate the acceleration of the cyclist between $0$ and $3.0\,\text{s}$.
[2]
(b) Calculate the total distance travelled in $12\,\text{s}$.
[4]
(Total for Question 1 = 6 marks)
2
A delivery van of mass $1800\,\text{kg}$ travels in a straight line. The driving force is $5400\,\text{N}$ and the total resistive force is $1800\,\text{N}$.
(a) Calculate the resultant force on the van.
[2]
(b) Calculate the acceleration of the van.
[2]
(c) Later the van is fully loaded. Its mass increases but the driving force and the resistive force stay the same.
(i) State what happens to the acceleration. Use $F = ma$ in your answer.
[1]
(ii) The thinking distance is $9.0\,\text{m}$ and the braking distance is $24\,\text{m}$. Calculate the stopping distance. Then explain why the extra load increases the stopping distance.
[2]
(Total for Question 2 = 7 marks)
3
A skydiver is falling at terminal velocity. She then opens her parachute.
(a) State what is meant by terminal velocity.
[2]
(b) Explain what happens to her motion immediately after the parachute opens, and why she later reaches a new terminal velocity.
[4]
(Total for Question 3 = 6 marks)
4
A student hangs masses from a helical spring and records the extension.
(a) The student uses $100\,\text{g}$ masses. Explain how the student obtains the force, in newtons, for each reading. Take $g = 10\,\text{N/kg}$.
[2]
(b) The results are shown.
Force / N
0
1.5
3.0
4.5
6.0
Extension / cm
0
2.0
4.0
6.0
9.5
(i) Calculate the spring constant $k$ using a pair of values from the linear region. Give your answer in N/m.
[2]
(ii) State whether Hooke’s law is obeyed at $6.0\,\text{N}$. Explain your answer.
[2]
(Total for Question 4 = 6 marks)
END OF PAPER 2
Pearson Edexcel International GCSE
Physics — Topic 1 Paper 3
Forces and Motion · specification 1.1, 1.3–1.24
Time allowed: 30 minutes
Total marks: 25
Candidate name:
Centre / class:
Answer all questions. You may use a calculator. Take $g = 10\,\text{N/kg}$. Show your working.
1
The velocity–time graph shows a trolley moving along a straight runway.
(a) Describe the motion of the trolley between $5.0\,\text{s}$ and $8.0\,\text{s}$.
[1]
(b) Calculate the acceleration between $0$ and $5.0\,\text{s}$.
[2]
(c) Calculate the distance travelled in the $13\,\text{s}$ shown on the graph.
[3]
(Total for Question 1 = 6 marks)
2
A trolley of mass $2.5\,\text{kg}$ is pulled along a bench by a force of $8.0\,\text{N}$. A frictional force of $3.0\,\text{N}$ acts in the opposite direction.
(a) Calculate the resultant force on the trolley.
[2]
(b) Calculate the acceleration of the trolley.
[2]
(c) A car travels at $20\,\text{m/s}$. The driver’s reaction time is $0.70\,\text{s}$ when alert and $1.4\,\text{s}$ when tired. The braking distance is $30\,\text{m}$ in both cases.
(i) Calculate the thinking distance when the driver is alert.
[1]
(ii) Explain why tiredness increases the stopping distance but does not change the braking distance.
[2]
(Total for Question 2 = 7 marks)
3
A raindrop falls from a cloud. It reaches a terminal velocity before it hits the ground. A steel ball of the same diameter, dropped from the same height, has a larger terminal velocity.
(a) Name the two forces that act on the raindrop as it falls through the air.
[2]
(b) Explain why the raindrop reaches a terminal velocity, and suggest why the steel ball’s terminal velocity is larger.
[4]
(Total for Question 3 = 6 marks)
4
A student is asked to investigate how extension varies with applied force for a helical spring, a metal wire and a rubber band.
(a) Describe one safety precaution and one way to reduce a measurement error in this experiment.
[2]
(b) The student’s spring results are shown.
Force / N
0
2.0
4.0
6.0
8.0
Extension / cm
0
3.0
6.0
9.0
13.5
(i) Use the linear region to calculate $k$ in N/m.
[2]
(ii) The rubber band returns to its original length when the load is removed, but its force–extension graph is curved from the start. Explain whether the rubber band shows elastic behaviour and whether it obeys Hooke’s law.