100 Questions for O level Physics with answers.

Mechanics:

1. What is the SI unit of force?
2. Define displacement.
3. What is the equation for calculating speed?
4. Define acceleration.
5. State Newton’s First Law of Motion.
6. What is the formula for calculating weight?
7. State Newton’s Second Law of Motion.
8. Define momentum.
9. What is the principle of conservation of momentum?
10. Define friction.
11. What is the equation for calculating pressure?
12. State the principle of moments.
13. Define work in the context of physics.
14. What is the equation for calculating work done?
15. Define power.
16. State the principle of conservation of energy.
17. What is the equation for calculating kinetic energy?
18. Define gravitational potential energy.
19. What is the equation for calculating gravitational potential energy?
20. Define elastic potential energy.
21. What is the equation for calculating elastic potential energy?
22. Define Hooke’s Law.
23. State the law of conservation of energy.
24. Define density.
25. What is the equation for calculating density?
26. Define upthrust.
27. State Archimedes’ principle.
28. What is the equation for calculating pressure in a fluid?
29. Define terminal velocity.
30. State the conditions required for an object to be in equilibrium.

Waves: 31. Define wave motion.

32. What is the equation for calculating wave speed?
33. State the principle of superposition.
34. Define amplitude.
35. What is the difference between transverse and longitudinal waves?
36. Define frequency.
37. What is the relationship between frequency and wavelength?
38. Define time period.
39. What is the relationship between time period and frequency?
40. State the law of reflection.
41. Define refraction.
42. State Snell’s Law.
43. What is the critical angle in the context of refraction?
44. Define dispersion.
45. State the principle of superposition for waves.
46. Define interference.
47. What is the difference between constructive and destructive interference?
48. Define diffraction.
49. What is the relationship between diffraction and wavelength?
50. Define resonance.
51. What is the relationship between the natural frequency and resonance?

Electricity and Magnetism: 52. Define electric current.

53. What is the SI unit of electric current?
54. State Ohm’s Law.
55. What is the relationship between current, voltage, and resistance in Ohm’s Law?
56. Define potential difference.
57. What is the SI unit of potential difference?
58. Define resistance.
59. What is the SI unit of resistance?
60. State the principle of conservation of charge.
61. Define electromotive force (EMF).
62. What is the SI unit of EMF?
63. Define electric power.
64. What is the equation for calculating electric power?
65. Define series and parallel circuits.
66. State Kirchhoff’s First Law (Kirchhoff’s Current Law).
67. State Kirchhoff’s Second Law (Kirchhoff’s Voltage Law).
68. Define magnetic field.
69. State the right-hand rule for magnetic fields.
70. What is the direction of the magnetic field around a current-carrying wire?
71. Define electromagnetism.
72. State Faraday’s Law of electromagnetic induction.
73. What is the relationship between the induced EMF and the rate of change of magnetic flux?
74. Define transformers.
75. State the formula for calculating the turns ratio of a transformer.
76. Define direct current (DC) and alternating current (AC).

Energy, Work, and Power: 77. Define kinetic energy.

78. What is the equation for calculating kinetic energy?
79. Define gravitational potential energy.
80. What is the equation for calculating gravitational potential energy?
81. Define elastic potential energy.
82. What is the equation for calculating elastic potential energy?
83. Define specific heat capacity.
84. What is the equation for calculating heat energy?
85. Define the first law of thermodynamics.
86. State the principle of conservation of energy.
87. Define the efficiency of a machine.
88. What is the equation for calculating the efficiency of a machine?
89. Define power.
90. What is the equation for calculating power?

Electromagnetic Spectrum and Optics: 91. Define the electromagnetic spectrum.

92. State the order of the electromagnetic spectrum from lowest to highest frequency.
93. Define the visible spectrum.
94. State the colors of the visible spectrum in order from lowest to highest frequency.
95. Define reflection.
96. State the law of reflection.
97. Define refraction.
98. State Snell’s Law.
99. Define dispersion.
100. What happens to the speed and wavelength of light as it enters a denser medium?

These questions cover various topics in O level Physics and can be used for quizzes, practice, or revision. The answers to these questions will depend on the specific concepts and knowledge covered in the course.