Prepare with Physics PKMCQs with answers on MCQs forum and Pak MCQs. Covering key topics for NTS, FPSC, PPSC, ETEA, and teaching posts like PST, CT, DM, PET, AT, TT, and Qari, these solved MCQs and 5 years past papers help you succeed in exams. Start practicing today!
Physics PKMCQs with Answers – MCQs Forum, Pak MCQs, 5 Years Past Papers:
1. The SI unit of force is:
a) Joule
b) Newton ✅
c) Watt
d) Pascal
2. The rate of change of velocity is called:
a) Speed
b) Momentum
c) Acceleration ✅
d) Force
3. The SI unit of work is:
a) Newton
b) Watt
c) Joule ✅
d) Pascal
4. The force that opposes the motion of objects is called:
a) Magnetic force
b) Friction ✅
c) Gravity
d) Tension
5. The acceleration due to gravity on Earth is approximately:
a) 7.8 m/s²
b) 8.9 m/s²
c) 9.8 m/s² ✅
d) 10.8 m/s²
6. The SI unit of power is:
a) Newton
b) Joule
c) Watt ✅
d) Pascal
7. The instrument used to measure electric current is:
a) Voltmeter
b) Ammeter ✅
c) Ohmmeter
d) Barometer
8. The bending of light as it passes from one medium to another is called:
a) Reflection
b) Refraction ✅
c) Diffraction
d) Dispersion
9. The force that attracts objects towards the center of the Earth is:
a) Magnetic force
b) Gravitational force ✅
c) Electrostatic force
d) Nuclear force
10. The SI unit of energy is:
a) Newton
b) Joule ✅
c) Watt
d) Volt
11. The first law of motion was given by:
a) Einstein
b) Galileo
c) Newton ✅
d) Faraday
12. The ability of a body to do work is called:
a) Power
b) Energy ✅
c) Force
d) Acceleration
13. The SI unit of pressure is:
a) Newton
b) Pascal ✅
c) Joule
d) Tesla
14. The speed of light in vacuum is approximately:
a) 200,000 km/s
b) 300,000 km/s ✅
c) 400,000 km/s
d) 500,000 km/s
15. The force that opposes the relative motion between two surfaces in contact is:
a) Tension
b) Friction ✅
c) Gravity
d) Normal force
16. The device used to convert electrical energy into mechanical energy is:
a) Generator
b) Motor ✅
c) Transformer
d) Battery
17. The SI unit of frequency is:
a) Hertz ✅
b) Joule
c) Tesla
d) Watt
18. The phenomenon of splitting of white light into different colors is called:
a) Reflection
b) Dispersion ✅
c) Refraction
d) Diffraction
19. The process by which heat is transferred without any medium is:
a) Conduction
b) Convection
c) Radiation ✅
d) Evaporation
20. The law that states that every action has an equal and opposite reaction is:
a) Newton’s first law
b) Newton’s second law
c) Newton’s third law ✅
d) Kepler’s law
21. The SI unit of charge is:
a) Coulomb ✅
b) Joule
c) Newton
d) Volt
22. The time taken by a pendulum to complete one oscillation is called:
a) Frequency
b) Time period ✅
c) Wavelength
d) Amplitude
23. The resistance of a conductor is measured in:
a) Joules
b) Newtons
c) Ohms ✅
d) Amperes
24. The lens used to correct myopia is:
a) Convex lens
b) Concave lens ✅
c) Cylindrical lens
d) Bifocal lens
25. The law of conservation of energy states that:
a) Energy can be created but not destroyed
b) Energy cannot be created or destroyed, only transformed ✅
c) Energy is always increasing
d) Energy can only be destroyed
26. The SI unit of voltage is:
a) Ampere
b) Ohm
c) Watt
d) Volt ✅
27. The angle of incidence is equal to the angle of reflection according to:
a) Snell’s Law
b) Newton’s Law
c) Law of Reflection ✅
d) Hooke’s Law
28. The instrument used to measure atmospheric pressure is:
a) Barometer ✅
b) Thermometer
c) Hydrometer
d) Ammeter
29. The number of protons in the nucleus of an atom is called:
a) Atomic mass
b) Atomic number ✅
c) Mass number
d) Valency
30. The SI unit of momentum is:
a) Newton-second ✅
b) Joule-second
c) Watt-second
d) Pascal-second
31. The force that keeps planets in orbit around the sun is:
a) Magnetic force
b) Electrostatic force
c) Gravitational force ✅
d) Nuclear force
32. The speed of sound is fastest in:
a) Air
b) Water
c) Vacuum
d) Solids ✅
33. The SI unit of capacitance is:
a) Ohm
b) Farad ✅
c) Coulomb
d) Tesla
34. The magnetic field around a straight current-carrying conductor is in the form of:
a) Straight lines
b) Concentric circles ✅
c) Parallel lines
d) Random curves
35. The process of changing a liquid into a gas is called:
a) Condensation
b) Sublimation
c) Evaporation ✅
d) Freezing
36. The force per unit charge is called:
a) Electric potential
b) Electric field ✅
c) Electric current
d) Electric resistance
37. The property of a body to resist change in its state of motion is called:
a) Velocity
b) Acceleration
c) Inertia ✅
d) Momentum
38. The temperature at which a solid turns into a liquid is called:
a) Boiling point
b) Melting point ✅
c) Freezing point
d) Condensation point
39. The electromagnetic waves used for communication are:
a) X-rays
b) Microwaves
c) Radio waves ✅
d) Infrared waves
40. The time taken by an object to complete one revolution in circular motion is called:
a) Period ✅
b) Frequency
c) Amplitude
d) Wavelength
41. Which one of the following is not a vector quantity?
a) Velocity
b) Displacement
c) Speed ✅
d) Acceleration
42. Which type of lens is used in magnifying glasses?
a) Concave
b) Convex ✅
c) Cylindrical
d) Bifocal
43. The SI unit of intensity of sound is:
a) Hertz
b) Watt
c) Decibel ✅
d) Joule
44. The quantity that remains constant in an isolated system is:
a) Momentum ✅
b) Force
c) Velocity
d) Power
45. The resistance of a conductor increases with:
a) Increase in length ✅
b) Increase in cross-sectional area
c) Decrease in temperature
d) Use of superconductors
46. The force required to stop a moving object depends on:
a) Mass of the object
b) Velocity of the object
c) Both mass and velocity ✅
d) Shape of the object
47. The phenomenon of hearing an echo is due to:
a) Reflection of sound ✅
b) Refraction of sound
c) Interference of sound
d) Diffraction of sound
48. The number of vibrations per second is called:
a) Frequency ✅
b) Wavelength
c) Amplitude
d) Time period
49. The SI unit of electric current is:
a) Coulomb
b) Ohm
c) Ampere ✅
d) Volt
50. The scientist who discovered X-rays was:
a) Newton
b) Einstein
c) Roentgen ✅
d) Maxwell
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