← all papers · Physics · 0625 · Paper 4 variant 10625/41/M/J/24

Practice

1. Question 15 marks
   • 1(a)Define acceleration.1 mark
   • 1(c)(i)Explain why this happens.4 marks
2. Question 22 marks
   • 2(b)State the energy transfer that takes place as the spring expands.2 marks
3. Question 35 marks
   • 3(a)State one way in which the motion of the particles in ice differs from the motion of the particles in water.1 mark
   • 3(b)(i)State the name of the thermal process that transfers energy from the water to the ice.1 mark
   • 3(b)(iii)Explain how convection causes the temperature of all the water in the beaker to decrease.3 marks
4. Question 48 marks
   • 4(a)(i)State what is meant by 'focal point'.2 marks
   • 4(a)(ii)On Fig. 4.1, mark: • a point X on the principal axis for a possible position of the object • a point E for a possible position of the student's eye.1 mark
   • 4(a)(iii)Underline two words in the list that describe the image produced.1 mark
   • 4(b)(ii)State what happens to the wavelength of light as it passes into the lens.1 mark
   • 4(c)State the name of the problem and explain how a converging lens is used to correct it.3 marks
5. Question 53 marks
   • 5(a)Describe how a longitudinal wave differs from a transverse wave.2 marks
   • 5(b)(i)Justify your choice.1 mark
6. Question 64 marks
   • 6(a)(i)State what is meant by 'electric field'.1 mark
   • 6(a)(ii)Draw at least four lines.3 marks
7. Question 73 marks
   • 7(b)(i)Draw a circuit diagram that shows all the 1.5 V cells connected to produce an e.m.f.3 marks
8. Question 88 marks
   • 8(a)(i)Complete the equation for this decay.3 marks
   • 8(a)(ii)Explain why this γ-emission does not affect the numbers in the decay equation.1 mark
   • 8(a)(iii)Suggest one reason why a nucleus of thallium-208 is unstable.1 mark
   • 8(b)On Fig. 8.1: • draw a line labelled β to indicate the path of the β-particles in the magnetic field • draw a line labelled γ to indicate the path of the γ-radiation in the magnetic field.3 marks
9. Question 95 marks
   • 9(c)(i)Describe and explain what happens as an interstellar cloud of gas forms a protostar.2 marks
   • 9(c)(ii)Describe and explain what happens as a protostar becomes a stable star.3 marks