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Monday, 22 June 2026
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Physics Past Questions and Answers

Topic: using the theory to explain:

Jamb Physics Questions - using the theory to explain:

Question 56:
THe velocity of sound in air at 16oC is 340ms-1. What will it be when the pressure is doubled and its temperature raised to 127oC?
  • A 400 ms<sup style='font-size: smaller;'>-1</sup>
  • B 4,000 ms<sup style='font-size: smaller;'>-1</sup>
  • C 8,000 ms<sup style='font-size: smaller;'>-1</sup>
  • D 160,000 ms<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 57:
A carpenter on top of a roof of 20.0m high dropped a hammer of mass 1.5 kg and it fell directly to the ground. the kinetic energy of the hammer just before hitting the ground is?[g = 10 ms-2]
  • A 600 J
  • B 150J
  • C 300 J
  • D 450 J
View Answer & Explanation
Question 58:
I. change of state
II. Diffusion
III. Radiation
IV. Osmosis
which of the processes above can be explained using the kinetic theory?
  • A I, II,III and IV
  • B I, II and III
  • C I, III and IV
  • D I, II and IV
View Answer & Explanation
Question 59:
Which of the following materials has an increase in resistance with temperature?
  • A Water
  • B Metals
  • C Wood
  • D Electrolyte
View Answer & Explanation
Question 60:
A length of wire has a frequency of 255Hz when stretched by a force of b225N. If the fore increased to 324N, what is the new frequency of vibration
  • A 306 Hz
  • B 512 Hz
  • C 488 Hz
  • D 356 Hz
View Answer & Explanation