Physics · 5054 · Paper 25054/02/SP/23
Start0 of 80 marks·0 of 45 parts attempted — start anywhere
- 1(a)(i)On Fig. 1.1, mark X at a point where the stone has constant speed and Y at a point where the stone is decelerating.2 marks
- 1(a)(ii)Name the force accelerating the stone at this time.1 mark
- 1(b)(i)State the force of air resistance acting on the stone at t = 0.1 mark
- 1(b)(ii)State the force of air resistance acting on the stone at t = 10 s.1 mark
- 1(b)(iii)Explain why the force of air resistance changes between t = 0 and t = 10 s.1 mark
- 1(c)(i)Draw a tangent on Fig. 1.1 and show your working.3 marks
- 1(c)(ii)Show your working.2 marks
- 3(a)Explain, in terms of particles, how the air exerts pressure on the inside surface of the bag.2 marks
- 3(b)(i)Calculate the volume of the air in the bag at ground level.2 marks
- 3(b)(ii)State one assumption made in your calculation in (b)(i).1 mark
- 3(c)Sketch on Fig. 3.2 how the volume of the air in the bag varies with pressure.2 marks
- 7(a)(i)State the effect of the magnetic field on wire PQ.2 marks
- 7(a)(ii)State the effect of using a stronger magnet.1 mark
- 7(b)(i)Explain why an e.m.f.2 marks
- 7(b)(ii)State one way of increasing the induced e.m.f.1 mark
- 7(b)(iii)Explain how the induced current opposes the motion of the magnet as it moves into the coil.2 marks
- 10(a)Explain why the Sun remains stable.2 marks
- 10(b)Describe what happens to a star of the same mass as the Sun at the end of its stable life.3 marks
- 10(c)Show your working and give the unit.3 marks
- 10(d)(i)State the name of the galaxy that contains the Sun.1 mark
- 10(d)(ii)Explain what is meant by redshift and what causes it.2 marks
- 10(d)(iii)Explain your answer.2 marks