PHYSICS 2024/2025 Trial Test Questions (50) Objective Questions

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Select the correct options for each Questions below

1. Which of the following is not an example of kinematics?

a) A car accelerating on a straight road. b) A ball falling freely under gravity. c) A stone being thrown horizontally from a cliff. d) A rocket flying in space.

2. Which law of motion states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force?

a) Newton's First Law. b) Newton's Second Law. c) Newton's Third Law. d) Law of Gravitation.

3. What is the SI unit of power?

a) Joule. b) Watt. c) Newton. d) Pascal.

4. Which of the following is not a type of heat transfer?

a) Conduction. b) Convection. c) Reflection. d) Radiation.

5. Which law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another?

a) Zeroth Law. b) First Law. c) Second Law. d) Third Law.

6. What is the equation of the ideal gas law?

a) PV = nRT. b) F = ma. c) F = GmM/r^2. d) E = mc^2.

7. Which of the following is a transverse wave?

a) Sound wave. b) Water wave. c) Light wave. d) Seismic wave.

8. What is the speed of light in vacuum?

a) 300,000 km/s. b) 3,000 km/s. c) 30,000 km/s. d) 300 km/s.

9. Which of the following statements about reflection is true?

a) The angle of incidence is always greater than the angle of reflection. b) The angle of reflection is always greater than the angle of incidence. c) The angle of incidence is equal to the angle of reflection. d) The angle of incidence and angle of reflection are unrelated.

10. What is the direction of the electric field around a positive point charge?

a) Radially outward. b) Radially inward. c) Along the axis of the charge. d) Tangential to the charge.

11. Which law describes the magnetic field produced by a current-carrying conductor?

a) Ampere's Law. b) Faraday's Law. c) Lenz's Law. d) Coulomb's Law.

12. What type of current does an AC generator produce?

a) Alternating current. b) Direct current. c) Variable current. d) Pulsating current.

13. Which phenomenon occurs when a light wave changes direction as it passes from one medium to another?

a) Reflection. b) Refraction. c) Diffraction. d) Interference.

14. What is the formula for the force between two point charges?

a) F = q1q2/d. b) F = kq1q2/d^2. c) F = q1q2/d^3. d) F = kq1q2/d^4.

15. In an electromagnetic wave, what oscillates?

a) Electric field only. b) Magnetic field only. c) Both electric and magnetic fields. d) Neither electric nor magnetic fields.

16. What is the SI unit of magnetic field strength?

a) Tesla. b) Weber. c) Gauss. d) Henry.

17. Which of the following devices uses electromagnetic induction?

a) Transformer. b) Capacitor. c) Resistor. d) Diode.

18. What happens to the current in a circuit if the resistance is increased?

a) Current decreases. b) Current increases. c) Current remains the same. d) Current becomes zero.

19. What happens to the induced current when the magnet moves away from a coil?

a) It decreases. b) It increases. c) It remains the same. d) It becomes zero.

20. Which of the following statements about electromagnetic waves is true?

a) They require a medium for propagation. b) They are mechanical waves. c) They travel at the speed of sound. d) They can travel through a vacuum.

21. What is the relationship between the period and frequency of a wave?

a) They are inversely proportional. b) They are directly proportional. c) They are unrelated. d) They are equal.

22. What is the formula for the speed of a wave?

a) v = fλ. b) v = λ/T. c) v = T/f. d) v = 1/f.

23. What determines the pitch of a sound wave?

a) Amplitude. b) Frequency. c) Wavelength. d) Speed.

24. Which of the following materials is a good conductor of heat?

a) Plastic. b) Wood. c) Glass. d) Metal.

25. What is the mechanism of heat transfer in a vacuum?

a) Conduction. b) Convection. c) Radiation. d) Insulation.

26. What is the SI unit of temperature?

a) Celsius. b) Kelvin. c) Fahrenheit. d) Joule.

27. What is the SI unit of specific heat capacity?

a) J/kg. b) J/(kg·°C). c) J/°C. d) J.

28. What is the relationship between pressure and volume in Boyle's Law?

a) P ∝ 1/V. b) P ∝ V. c) P ∝ V^2. d) P ∝ V^3.

29. What is the equation for work done in an isothermal process?

a) W = PΔV. b) W = nRT. c) W = ΔE. d) W = Q.

30. What type of process occurs in an adiabatic expansion of a gas?

a) Constant pressure. b) Constant volume. c) Isothermal. d) Adiabatic.

31. What is the SI unit of entropy?

a) J/K. b) J/(K·mol). c) J/(kg·K). d) J/mol.

32. Which of the following is not an assumption of the kinetic theory of gases?

a) Gases consist of small particles. b) Gas particles are in constant motion. c) Gas particles do not interact with each other. d) Gas particles have negligible volume.

33. Which of the following is not a property of a wave?

a) Amplitude. b) Frequency. c) Density. d) Wavelength.

34. What is the equation for the period of a pendulum?

a) T = 2π√(L/g). b) T = 2π(L/g). c) T = 2π(g/L). d) T = 2π(L).

35. What happens to the speed of sound when the temperature of the medium increases?

a) It increases. b) It decreases. c) It remains the same. d) It becomes zero.

36. Which of the following is an example of a longitudinal wave?

a) Sound waves. b) Light waves. c) Water waves. d) Radio waves.

37. What is the equation for the kinetic energy of an object?

a) KE = 1/2mv. b) KE = 1/2mv^2. c) KE = mv. d) KE = mv^2.

38. What is the SI unit of power?

a) Watt. b) Joule. c) Newton. d) Ohm.

39. Which of the following is not a conservative force?

a) Gravity. b) Friction. c) Electrostatic force. d) Spring force.

40. What is the SI unit of gravitational force?

a) Newton. b) Kilogram. c) Meter per second. d) Joule.

41. What is the SI unit of work?

a) Joule. b) Watt. c) Newton. d) Ohm.

42. Which of the following is not a form of electromagnetic radiation?

a) X-rays. b) Ultraviolet. c) Sound waves. d) Microwaves.

43. What happens to the angle of reflection when light strikes a plane mirror?

a) It increases. b) It decreases. c) It remains the same. d) It becomes zero.

44. Which of the following phenomena is caused by refraction of light?

a) Mirage. b) Reflection. c) Polarization. d) Diffraction.

45.

45. What is the law of reflection?

a) Angle of incidence is equal to the angle of refraction. b) Angle of incidence is greater than the angle of reflection. c) Angle of incidence is less than the angle of reflection. d) Angle of incidence is perpendicular to the angle of reflection.

46.

46. What is the direction of the force experienced by a current-carrying wire in a magnetic field?

a) Perpendicular to the wire. b) Along the length of the wire. c) Opposite to the direction of the current. d) Parallel to the wire.

47. Which of the following is an example of electromagnetic induction?

a) Charging a phone with a wireless charger. b) Lighting a bulb with a switch. c) Cooking with an electric stove. d) Listening to radio waves.

48. What determines the strength of the magnetic field around a current-carrying wire?

a) The length of the wire. b) The resistance of the wire. c) The direction of the current. d) The distance from the wire.

49. Which of the following materials can be magnetized?

a) Rubber. b) Glass. c) Copper. d) Iron.

50. Which of the following devices uses electromagnetic induction?

a) Transformer. b) Resistor. c) Capacitor. d) Diode.