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 1021: The purpose of a dielectric material in a parallel plate capacitor is to Options:
  A) increase its capacitance
  B) decrease its capacitance
  C) insulate the plate from each other
  D) increase the magnetic field between the plates
  Show Answer
  The correct answer is C .
• Question 1022:

  Which of the following is an example of a couple?

  Options:
  A) All of the above.
  B) The forces that are applied to the handle of a screwdriver when you twist it.
  C) The forces that are applied to a cross wench to loosen or tighten the lug nuts on a wheel of a car.
  D) The forces that are applied to the steering wheel of a car when you turn it.
  Show Answer
  The correct answer is A .
• Question 1023: In a purely inductive circuit, the current Options:
  A) lags behind the voltage in phase by 90^o
  B) leads the voltage in phase by 90^o
  C) is in the same phase with the voltage
  D) leads the voltage by 180^o
  Show Answer
  The correct answer is A .
• Question 1024:

  The vapour pressure?

  Options:
  A) increases non-linearly with measuring temperature
  B) increases linearly with increasing temperature
  C) decreases linearly with increasing temperature
  D) decreases non-linearly ith measuring temperature
  Show Answer
  The correct answer is A .
• Question 1025: The inside portion of part of a hollow metal sphere of diameter 20cm is polished. The portion will therefore form a Options:
  A) concave mirror of focal length 5cm
  B) concave mirror of focal length 10cm
  C) convex mirror of focal length 5cm
  D) convex mirror of focal length 20cm
  Show Answer
  The correct answer is A .
• Question 1026: Which of the following units is equivalent to kgms^-1? Options:
  A) Ns^-1
  B) Nms^-1
  C) Ns
  D) Js^-1
  Show Answer
  The correct answer is C .
• Question 1027: A wire of length 15m made of a material of resistivity 1.8 x 10^-6$\mathrm{\Omega }$m has a resistance of 0.27$\mathrm{\Omega }$. Determine the area of the wire Options:
  A) 1.5 x 10^-4m²
  B) 1.0 x 10^-4m²
  C) 2.7 x 10^-5m²
  D) 7.3 x 10^-6m²
  Show Answer
  The correct answer is B .
• Question 1028:

  Calculate the mass of ice that would melt when 2kg of copper is quickly transferred from boiling water to a block of ice without heat loss (specific heat capacity of copper = 400Jkg${}^1$k${}^{-1}$, latent heat of fusion of ice = 3.3 x 10${}^5$Jkg${}^{-1}$)

  Options:
  A) $\frac{8}{33}$kg
  B) $\frac{3.3}{80}$kg
  C) $\frac{80}{33}$kg
  D) $\frac{3.3}{8}$kg
  Show Answer
  The correct answer is A .
• Question 1029:

  

  In the diagram above, if the internal resistance of the cell is zero, the ration of the powers P₁ and P₂ dissipated by R₁ and R₂

  Options:
  A) ^R₂/_R1
  B) ^R₁/_R2
  C) ^R₁+R₂/_R1
  D) ^R₁+R₂/_R2
  Show Answer
  The correct answer is A .
• Question 1030:

  A train has an initial velocity of 44m/s and an acceleration of -4m/s${}^2$. Calculate its velocity after 10 seconds

  Options:
  A) 10m/s
  B) 6m/s
  C) 8m/s
  D) 4m/s
  Show Answer
  The correct answer is D .