2021 A/L Physics Past Paper 1 (English Medium)

G.C.E. (A/L) Physics 2021 (2022) — Paper I

2021 A/L Physics past paper 1 in English medium: 50 MCQ questions, each with the answer and a full explanation.

  1. Q01: Which pair has the same dimensions?
  2. Q02: Main scale division from the least count
  3. Q03: Bending of light at a sharp edge
  4. Q04: What is conserved in every collision
  5. Q05: What the mean kinetic energy of a gas depends on
  6. Q06: Two blocks stick together after the collision
  7. Q07: Smallest area of an aluminium rod that must not break
  8. Q08: Charge of a down quark
  9. Q09: Wave speed on a string with a thicker part
  10. Q10: A NAND gate with its two inputs joined
  11. Q11: Refracted rays from a point of an object in front of a concave lens
  12. Q12: The velocity–time graph from a displacement–time graph
  13. Q13: The projection of a body in circular motion
  14. Q14: Water column in a tilted capillary tube
  15. Q15: What the moment of inertia depends on
  16. Q16: Force of a liquid jet on a wall
  17. Q17: Where a charge near +4q and -q feels no force
  18. Q18: Tensions on the two sides of a pulley that turns
  19. Q19: PV against P for a gas at constant temperature
  20. Q20: Gravitational intensity on Jupiter
  21. Q21: Depth of a floating composite cylinder
  22. Q22: Doping of the three parts of a bipolar junction transistor
  23. Q23: Reading of a voltmeter joined between two voltage dividers
  24. Q24: Centre of gravity from two ways of hanging a plate
  25. Q25: Lifting force of cyclone wind on a roof
  26. Q26: Terminal velocity of a small drop in air
  27. Q27: Properties of electromagnetic waves
  28. Q28: Uranium 235 splits: find a and b
  29. Q29: Blue, red and yellow light on a metal surface
  30. Q30: Change in internal energy of heated air
  31. Q31: Internal resistance of a cell found with a potentiometer
  32. Q32: Charge on three capacitors when a key is opened
  33. Q33: Magnetic field at a corner of a square with three wires
  34. Q34: Total force on a charge in parallel electric and magnetic fields
  35. Q35: Total deviation of a ray through a glass sphere
  36. Q36: Heat flow in a triangle of rods
  37. Q37: Astronomical telescope and compound microscope compared
  38. Q38: Slowing of a flywheel when the motor is switched off
  39. Q39: Frequency heard by an observer who passes a sound source
  40. Q40: Current from a battery joined to a symmetric network of sixteen resistors
  41. Q41: Angles of refraction of red and blue rays at minimum deviation
  42. Q42: Water boiled off by a hot copper vessel
  43. Q43: Ammeter reading when a contact moves round a conducting ring
  44. Q44: Current that holds a wire still on a slope in a vertical magnetic field
  45. Q45: Electric field of a point charge inside a cavity in a charged conducting sphere
  46. Q46: Power used by two devices side by side on a battery with internal resistance
  47. Q47: Potential energy of two conducting spheres that shared charge
  48. Q48: A ball thrown upwards passes 25 m twice
  49. Q49: Force of the water on the sloping wall of a flask
  50. Q50: Current in a triangular loop that passes through a magnetic field

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