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:

  A convex mirror is used as a driving mirror because
  i. its image is erect.
  ii. it has a large field of view.
  iii. it has a long focal length.

  Identify the CORRECT statement(s)

  Options:
  A) i andiii only
  B) i and ii only
  C) ii and iii only
  D) i, ii, and iii only
  E) i only
  Show Answer
  The correct answer is B .
• Question 2: When an ebolite rod is rubbed with fur, it has Options:
  A) no charge at all
  B) a negative charge
  C) a positive charge
  D) negative and positive charges
  Show Answer
  The correct answer is B .
• Question 3: The amount of heat required to raise the temperature of a body is Options:
  A) Thermal energy
  B) thermal conduction
  C) heat loss
  D) specific heat capacity
  E) thermal capacity
  Show Answer
  The correct answer is E .
• Question 4: A lamp is rated 240V 60W, calculate the resistance of its filament Options:
  A) 240$\mathrm{\Omega }$
  B) 360$\mathrm{\Omega }$
  C) 960$\mathrm{\Omega }$
  D) 1440$\mathrm{\Omega }$
  Show Answer
  The correct answer is C .
• Question 5: The difference of potential between the terminals of cells is 2.2 volts. When a 4ohm resistor is connected across the terminals of this cells, the potential difference is 2 volts. What is the internal resistance of the cell? Options:
  A) 0.10 ohms
  B) 0.25ohms
  C) 0.40ohms
  D) 2.50ohms
  E) 4.00ohms
  Show Answer
  The correct answer is C .
• Question 6:

  A positively charged rod X is brought near an uncharged metal sphere Y and is then touched by a finger with X still in place. When the finger is removed, the result is that Y has

  Options:
  A) no charge and a zero potential
  B) a positive charge and a zero potential
  C) a negative charge and a positive potential
  D) a negative charge and a negative potential
  Show Answer
  The correct answer is D .
• Question 7: The force with which an object is attracted to the earth is called its Options:
  A) acceleration
  B) mass
  C) gravity
  D) impulse
  E) weight
  Show Answer
  The correct answer is E .
• Question 8: Normal atmospheric pressure at sea-level is 10⁵Nm^-2 and the acceleration due to gravity is approximately 10ms^-1. If the atmosphere has a uniform density of 1kgm^-3, its height is Options:
  A) 100m
  B) 1000m
  C) 10 000m
  D) 100 000m
  E) 1000 000m
  Show Answer
  The correct answer is C .
• Question 9: Two spheres of masses 5.0 kg and 10.0 kg are 0.3 m apart. Calculate the force of attraction between them?
  [G = 6.67 X 10^-11 Nm² Kg²] Options:
  A) 3.50 x 10^-10N
  B) 3.71 x 10^-8 N
  C) 3.57 x 10^-2N
  D) 4.00 x 10²N
  Show Answer
  The correct answer is B .
• Question 10: Two equal capacitances are connected first in series and then in parallel. The ratio of the effective series capacitance to the effective parallel capacitance is Options:
  A) 0.25
  B) 0.50
  C) 1.00
  D) 2.20
  E) 4.00
  Show Answer
  The correct answer is A .