Pearson Edexcel International GCSE
Physics — Year 10 Paper 4
On the road · mixed Topics 1–5
Time allowed: 40 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. This paper samples Topics 1–5 (Double Award only).
1
Topic 1 A car travels at $20\,\text{m/s}$. The driver’s thinking time is $0.60\,\text{s}$. The braking distance is $20\,\text{m}$.
(a) Calculate the thinking distance and the stopping distance.
[3]
(b) State one factor that increases thinking distance and one factor that increases braking distance.
[2]
(Total for Question 1 = 5 marks)
2
Topic 2 A car heater is labelled $12\,\text{V}$, $48\,\text{W}$.
(a) Calculate the current in the heater.
[2]
(b) Calculate the resistance of the heater.
[3]
(Total for Question 2 = 5 marks)
3
Topic 3 An ambulance approaches a stationary pedestrian with its siren on.
(a) Describe the change in the observed frequency and wavelength of the sound as the ambulance approaches.
[3]
(b) State whether this Doppler effect happens for electromagnetic waves as well as for sound.
[2]
(Total for Question 3 = 5 marks)
4
Topic 4 A $1200\,\text{kg}$ van is travelling at $10\,\text{m/s}$.
(a) Calculate the kinetic energy of the van.
[2]
(b) The van then climbs a flyover of height $4.0\,\text{m}$. Calculate the increase in gravitational potential energy.
[3]
(Total for Question 4 = 5 marks)
5
Topic 5 Air in a car tyre is at $17^\circ\text{C}$ and $240\,\text{kPa}$. After a long drive the temperature of the air is $47^\circ\text{C}$. The volume is constant.
(a) Convert both temperatures to kelvin.
[2]
(b) Calculate the new pressure. Assume a fixed mass of air.
[3]
(Total for Question 5 = 5 marks)
END OF PAPER 4 — On the road