Physics · 9702 · Paper 29702/02/SP/22
Start0 of 53 marks·0 of 32 parts attempted — start anywhere
- 2(a)Define acceleration.1 mark
- 2(b)(i)Calculate the initial horizontal component vX of the velocity of the ball.1 mark
- 2(b)(ii)Show that the initial vertical component vY of the velocity of the ball is 8.5 m s⁻¹.2 marks
- 2(b)(iii)Calculate the time taken for the ball to reach its maximum height above the ground.2 marks
- 2(c)(i)Calculate the maximum height above the ground of the ball.2 marks
- 2(c)(ii)Calculate the mass of the ball.2 marks
- 2(d)State and explain the effect, if any, of the increased mass on the time taken by the ball to reach its maximum height.1 mark
- 3(a)(i)Define force.1 mark
- 3(a)(ii)State what is meant by work done.1 mark
- 3(b)(i)Calculate the initial kinetic energy of the block.2 marks
- 3(b)(ii)Use your answer in (b)(i) (the initial kinetic energy) to calculate the maximum force F_MAX exerted on the spring by the block.2 marks
- 3(b)(iii)Calculate the maximum deceleration of the block.2 marks
- 3(b)(iv)State and explain whether the block is in equilibrium: • before it hits the spring • when its speed becomes zero.2 marks
- 3(b)(v)Calculate the magnitude of the change in momentum of the block.2 marks
- 6(a)Show that the total resistance R of the combination is given by the equation 1/R = 1/R₁ + 1/R₂ + 1/R₃.2 marks
- 6(b)(i)By considering energy, explain why the potential difference across the terminals of the battery is less than the e.m.f.1 mark
- 6(b)(ii)Calculate: • the total energy transferred by the battery • the number of electrons that pass through the battery.3 marks
- 6(b)(iii)Calculate the resistance of X.1 mark
- 6(b)(iv)Use your answer in (b)(iii) to determine the ratio (power dissipated in thermistor X)/(power dissipated in 12 Ω resistor).2 marks