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 1: 40m³ of liquid is mixed with 60m³ of another liquid Q. If the density of P and Q are 1.00kgm^-3 and 1.6kgm^-3 respectively, what is the density of the mixture? Options:
  A) 0.05kgm^-3
  B) 1.25kgm^-3
  C) 1.30kgm^-3
  D) 1.36kgm^-3
  Show Answer
  The correct answer is D .
• Question 2: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 3: Which of the following best describes the energy changes which take place when a steam engine drives a generator which lights a lamp? Options:
  A) heat $\to$ light $\to$ sound $\to$ kinetic
  B) kinetic $\to$ light $\to$ heat $\to$ electricity
  C) heat $\to$ kinetic$\to$ electricity $\to$ heat $\to$ light
  D) electricity $\to$ kinetic $\to$ heat v light
  E) heat $\to$ sound $\to$ kninetic v electricity
  Show Answer
  The correct answer is C .
• Question 4: If a solid changes directly into a gas when heat is applied the process is called Options:
  A) vaporization
  B) evaporation
  C) sublimation
  D) ionization
  E) conversion
  Show Answer
  The correct answer is C .
• Question 5: Two points on a velocity time-graph have coordinates (5s, 10ms^-1) and (20s, 20ms^-1). Calculate the mean acceleration between the two points Options:
  A) 0.67ms^-1
  B) 0.83ms^-1
  C) 1.50ms^-1
  D) 2.00ms^-1
  Show Answer
  The correct answer is A .
• Question 6: The thermos flask is designed to? Options:
  A) prevent heat loss or gain by conduction, convection amd radiation
  B) store hot tea or water
  C) prevent heat gain by conduction, convection and radiation
  D) prevent head lost conduction, convention and radiation
  Show Answer
  The correct answer is A .
• Question 7: Myopic defects in the human eye can be corrected through the use of a Options:
  A) Concave Mirror
  B) Concave lens
  C) Prism
  D) Convex lens
  Show Answer
  The correct answer is B .
• Question 8: What is the difference in the amount of heat given out by 4kg of steam and 4kg of water when both are cooled from 100^oC to 80^oC? [the specific latent heat of steam is 2,260,000Jkg^-1, specific heat capacity of water is 4200Jkg^-1K^-1] Options:
  A) 4200J
  B) 2,260,OOOJ
  C) 9,040,000J
  D) 9,380,000J
  Show Answer
  The correct answer is C .
• Question 9: Which of the following expressions gives the linear magnification produced by a concave mirror of radius of curvature r, if U and V are the object and image distances respectively? Options:
  A) $\frac{V}{r}$ - 1
  B) $\frac{2V}{r}$ - 1
  C) $\frac{U}{r}$ - 1
  D) $\frac{2U}{r}$ - 1
  Show Answer
  The correct answer is D .
• Question 10:

  

  For the wave motion represented above, the wavelength is given by

  Options:
  A) p
  B) q
  C) r
  D) s
  E) t
  Show Answer
  The correct answer is D .