Paper 3 H - SAMPLE SET 1 Q2
2) This question is about speed.
2.1) What is a typical value for the speed of sound? [1 mark]
Tick one box.
2.1) What is a typical value for the speed of sound? [1 mark]
Tick one box.
Figure 2 shows a distance–time graph of a car.
Explain what Figure 2 shows about the motion of the car between point A and point E.
You should use values from Figure 2 in your answer. [4 marks]
2.3) The kinetic energy of a moving car depends on the car’s mass and speed.
Write down the equation that links kinetic energy, mass and speed. [1 mark]
2.4) A car has a mass of 1 650 kg.
Table 1 shows the kinetic energy of the car moving at 11 m/s.
You should use values from Figure 2 in your answer. [4 marks]
2.3) The kinetic energy of a moving car depends on the car’s mass and speed.
Write down the equation that links kinetic energy, mass and speed. [1 mark]
2.4) A car has a mass of 1 650 kg.
Table 1 shows the kinetic energy of the car moving at 11 m/s.
Calculate the missing value in Table 1.
Give your answer in kilojoules (kJ). [2 marks]
Give your answer in kilojoules (kJ). [2 marks]
Kinetic energy = ____________ kJ
2.5) A man is driving his car at a constant speed on a wet road. He sees a fallen tree on the wet road and tries to stop quickly to prevent an accident.
Explain why the man may not be able to stop in time. [6 marks]
(Total for Question 2 = 14 marks)
(Total for Question 2 = 14 marks)