Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 1071: Of the following which is different from the other? Options:
  A) x-rays
  B) gamma-rays
  C) cathode rays
  D) ultra violet rays
  E) infrared rays
  Show Answer
  The correct answer is C .
• Question 1072:

  The pitch of a musical note is determined by the frequency of the sound wave that it produces. If two instruments produce sound waves at the same frequency, which of the following factors will most affect the difference in the sound quality (timbre) of the instruments?

  Options:
  A) The shape of the instrument
  B) The tension of the string
  C) The size of the instrument
  D) The material of the instrument
  Show Answer
  The correct answer is A .
• Question 1073:
  

  A 400 N box is being pushed across a level floor at a constant speed by a force P of 100 N at an angle of 30.0° to the horizontal, as shown in the the diagram below. What is the coefficient of kinetic friction between the box and the floor?

  Options:
  A) 0.19
  B) 0.24
  C) 0.40
  D) 0.22
  Show Answer
  The correct answer is A .
• Question 1074:

  A ball of mass 0.5kg moving at 10ms${}^{-1}$ collides with another ball of equal mass at rest. If the two balls move off together after the impact, calculate their common velocity.

  Options:
  A) 0.2ms${}^{-1}$
  B) 0.5ms${}^{-1}$
  C) 5.0ms${}^{-1}$
  D) 5.5ms${}^{-1}$
  Show Answer
  The correct answer is C .
• Question 1075: The bond between silicon and germanium is Options:
  A) covalent
  B) ionic
  C) dative
  D) electrovalent
  Show Answer
  The correct answer is A .
• Question 1076: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .
• Question 1077:

  One newton × One meter equals?

  Options:
  A) One water
  B) One Joule
  C) One ampere
  D) One kilogram
  Show Answer
  The correct answer is B .
• Question 1078: A boy ran a distance of 200m in 24s. His average speed was 8.3ms^-1. Which of the following is correct about the units in which the statements above are expressed? Options:
  A) All the units are fundamental.
  B) All the units are derived
  C) All the units except one are S.I units
  D) Two of the units are fundamental and one derived.
  E) None of the units is S.I units.
  Show Answer
  The correct answer is D .
• Question 1079: Which of the following statements is correct? Silvered walls of a vacuum flask are used to prevent Options:
  A) heat loss due to conduction
  B) vacuum loss
  C) heat entry into the inner flask due to convection
  D) heat loss due to radiation
  E) heat loss due to convection
  Show Answer
  The correct answer is D .
• Question 1080:

  T(oC)	0	5	10	15	20	40	60
  S.V.P (mmHg)	4.58	6.51	8.94	12.67	17.50	55.10	149.00

  The table above shows the saturation vapour pressure against temperature in a certain town. If the vapour pressure in this town at 20^oC is 10mmHg, what is the relative humidity?

  Options:
  A) 170.0%
  B) 57.0%
  C) 17.5%
  D) 10.0%
  Show Answer
  The correct answer is B .