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: 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 2: Two forces of magnitudes 7N and 3N act at right angles to each other. The angle $\theta$ between the resultant and the 7N force is given by Options:
  A) cos$\theta$ = $\frac{3}{7}$
  B) sin$\theta$ = $\frac{3}{7}$
  C) tan$\theta$ = $\frac{3}{7}$
  D) cot$\theta$ = $\frac{3}{7}$
  Show Answer
  The correct answer is C .
• Question 3: The force on a charge moving with velocity v in a magnetic field B is half of the maximum force when the angle between v and B is Options:
  A) 90^o
  B) 45^o
  C) 30^o
  D) 0^o
  Show Answer
  The correct answer is C .
• Question 4:

  

  In the curve above, PQRST represents an alternating voltage of frequency 50Hz. The time interval between points P and R on the graph is

  Options:
  A) 25s
  B) 1/50s
  C) 1/100s
  D) 1/200s
  Show Answer
  The correct answer is C .
• Question 5: Which gas produces a pink coloured light in a discharge tube? Options:
  A) Mercury
  B) Argon
  C) Air
  D) Neon
  Show Answer
  The correct answer is C .
• Question 6: Which of the following elements is the best absorber of X-rays? Options:
  A) hydrogen
  B) oxygen
  C) calcium
  D) copper
  E) lead
  Show Answer
  The correct answer is E .
• Question 7:

  A ball of mass 0.15kg is kicked against a rigid vertical wall with a horizontal velocity of 50ms^-1. If it rebounced with a horizontal velocity of 30ms^-1, calculate the impulse of the ball on the ball.

  Options:
  A) 3.0Ns
  B) 4.5Ns
  C) 7.5Ns
  D) 12.0Ns
  Show Answer
  The correct answer is D .
• Question 8:

  A lead bullet of mass 0.05kg is fired with a velocity of 200ms${}^{-1}$ into a block of mass 0.95kg. Given that the lead block can move freely, the final kinetic energy after impact is?

  Options:
  A) 50J
  B) 100J
  C) 150J
  D) 200J
  Show Answer
  The correct answer is A .
• Question 9: A galvanometer of resistance 20$\mathrm{\Omega }$ is to be provided with a shunt that $\frac{1}{10}$ of the whole current in a circuit passes through the galvanometer. The resistance of the shunt is Options:
  A) 2.00$\mathrm{\Omega }$
  B) 2.22$\mathrm{\Omega }$
  C) 18.00$\mathrm{\Omega }$
  D) 18.22$\mathrm{\Omega }$
  Show Answer
  The correct answer is B .
• Question 10:

  The eclipse of the moon occurs when?

  Options:
  A) the moon reflects the rays from the sun to the earth
  B) the moon comes exactly between the earth and the sun
  C) the earth comes exactly between the moon and the sun
  D) the sun comes exactly between the earth and the moon
  Show Answer
  The correct answer is C .