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 11:

  An object moves in a circular path of radius 0.5m with a speed of 1ms${}^{-1}$. What is its angular velocity?

  Options:
  A) 8rads${}^{-1}$
  B) 4rads${}^{-1}$
  C) 1rads${}^{-1}$
  D) 2rads${}^{-1}$
  Show Answer
  The correct answer is D .
• Question 12: The effect of a particle in a fluid attaining its terminal velocity is that the Options:
  A) acceleration is maximum
  B) weight is equal to the retarding force
  C) buoyancy force is equal to the to the viscous retardind force
  D) buoyancy force is more than the weight of the fluid displaced
  Show Answer
  The correct answer is B .
• Question 13: An object of mass 80 kg is pulled on a horizontal rough ground by a force of 500 N. Find the coefficient of static friction.
  [g = 10 ms^-2] Options:
  A) 0.8
  B) 0.4
  C) 1.0
  D) 0.6
  Show Answer
  The correct answer is D .
• Question 14: A travelling wave moving from left to right has an amplitude of 0.15m, a frequency of 550Hz and a wavelength of 0.01m. The equation describing the wave is Options:
  A) y = 0.15 sin 200π(x - 5.5t)
  B) y = 0.15 sin π(0.01x - 5.5t)
  C) y = 0.15 sin 5.5π(x - 200t)
  D) y = 0.15 sin π(550x - 0.01t)
  Show Answer
  The correct answer is A .
• Question 15: The resistance of an open series circuit is Options:
  A) zero
  B) half the normal resistance of the circuit
  C) double the normal resistance of the circuit
  D) one
  E) infinite
  Show Answer
  The correct answer is E .
• Question 16: A weightless vessel of dimensions 4m x 3m x 2m is filled with a liquid of density 1000kgm^-3 and sealed. What is the maximum pressure this container can exert on a flat surface? [g = 10ms^-2] Options:
  A) 9 x 10⁴NM^-2
  B) 4 x 10⁴NM^-2
  C) 3 x 10⁴NM^-2
  D) 2 x 10⁴NM^-2
  Show Answer
  The correct answer is D .
• Question 17:

  The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there between 40Hz and 180Hz?

  Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is B .
• Question 18:

  The velocities of light in air and glass are 3.0 x 10${}^8$ms${}^{-1}$ and 2.0 x 10${}^8$ms${}^{-1}$ respectively. If the angle of refraction is 30º, the sine of the angle of incidence is?

  Options:
  A) 0.33
  B) 0.50
  C) 0.67
  D) 0.75
  Show Answer
  The correct answer is D .
• Question 19: A 500kg car which was initially at rest travelled with an acceleration of 5m sec^-2, its kinetic energy after 4 seconds was Options:
  A) 10⁵J
  B) 2.5 x 10³J
  C) 2 x 10³J
  D) 5 x 10³J
  E) 5 x 10^5J`
  Show Answer
  The correct answer is A .
• Question 20:

  A source of sound produces waves in air of wavelength1.65m. If the speed of soundin air is 330ms${}^{-1}$, the period of vibration in air is?

  Options:
  A) 200
  B) 0.005
  C) 0.5
  D) 0.02
  Show Answer
  The correct answer is B .