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 1091: A simple pendulum has a period of 17.0s. When the length is shorten by 1.5m, its period is 8.5s. Calculate the original length of the pendulum Options:
  A) 4.0 m
  B) 3.0 m
  C) 2.0 m
  D) 1.5 m
  Show Answer
  The correct answer is C .
• Question 1092: A car moves with an initial velocity of 25 ms^-1 and reaches a velocity of 45 ms^-1 in 10s. what is the acceleration of the car? Options:
  A) 2 ms^-2
  B) 5 ms^-2
  C) 20 ms^-2
  D) 25 ms^-2
  Show Answer
  The correct answer is A .
• Question 1093:

  Calculate the absolute pressure at the bottom of a lake at a depth of 32.8 m. Assume the density of the water is 1 x 10^3 kgm-3 and the air above is at a pressure of 101.3 kPa.

  [Take g = 9.8 ms-2]

  Options:
  A) 422.7
  B) 220.14
  C) 464.53
  D) 321.74
  Show Answer
  The correct answer is A .
• Question 1094: Which of the following is NOT a vector quantity? Options:
  A) Force
  B) Altitude
  C) weight
  D) Displacement
  E) Acceleration
  Show Answer
  The correct answer is B .
• Question 1095: Which of the following statements is correct about a machine? Options:
  A) Efficiency of a machine is always greater than I
  B) Efficiency decreases with an increase in friction
  C) Velocity ratio depends on friction
  D) Mechanical advantage increases with an increase in friction
  Show Answer
  The correct answer is B .
• Question 1096:

  The equation of a wave travelling along the positive x-direction is given by;

  Y = 0.25 x 10^-3 sin (500t - 0.025x).

  Determine the angular frequency of the wave motion.

  Options:
  A) 0.25 x 10^-3rad s^-1
  B) 0.25 x 10^-1rad s^-1
  C) 5.00 x 10²rad s^-1
  D) 2.50 x 10³rad s^-1
  Show Answer
  The correct answer is C .
• Question 1097: When taking a penalty kick, a footballer applies a force of 30.0N for a period of 0.05s. if the mass of the ball is 0.075kg, calculate the speed with which the ball moves off. Options:
  A) 4.50ms^-1
  B) 11.25ms^-1
  C) 20.00ms^-1
  D) 45.00ms^-1
  Show Answer
  The correct answer is C .
• Question 1098: Natural radioactivity is the random spontaneous disintegration of the nuclei of heavy isotopes of certain elements with the emission of Options:
  A) $\alpha$, X, and $\beta$
  B) $\alpha$, $\beta$ and $\gamma$-rays
  C) X, $\alpha$, $\gamma$-ray
  D) $\alpha$, $\beta$ and X-rays
  Show Answer
  The correct answer is B .
• Question 1099: A capacitor of 20 x 10^-12F and an inductor are joined in series. The value of the inductance that will give the circuit a resonance frequency of 200kHz is Options:
  A) I/16 H
  B) I/8 H
  C) I/64 H
  D) I/32 H
  Show Answer
  The correct answer is D .
• Question 1100: An empty density bottle weighs 2 N. if its weighs 5 N when filled with water and 4 N when filled with olive oil, the relative density of olive oil is Options:
  A) (1)/3
  B) (2)/3
  C) (1)/5
  D) (2)/5
  Show Answer
  The correct answer is B .