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 301: A slight loading of a tuning fork has the effect of Options:
  A) decreasing its amplitude
  B) increasing its amplitude
  C) decreasing its frequency
  D) increasing its frequency
  Show Answer
  The correct answer is B .
• Question 302: The thermos flask is designed to? Options:
  A) prevent heat loss or gain by conduction, convection amd radiation
  B) store hot tea or water
  C) prevent heat gain by conduction, convection and radiation
  D) prevent head lost conduction, convention and radiation
  Show Answer
  The correct answer is A .
• Question 303: Calculate the magnitude of the force required to just move a 20kg object along a horizontal surface if the coefficient of friction is 0.2. [g = 10ms^-2] Options:
  A) 400.0N
  B) 40.0N
  C) 4.0N
  D) 0.4N
  Show Answer
  The correct answer is B .
• Question 304:

  

  PQ is a thin rod on a horizontal table, RS is a plane mirror inclined at ${45}^{\circ }C$ to the horizontal as shown above. The image of PQ as seen in the mirror by the eye T is

  Options:
  A) horizontal
  B) parallel to the mirror
  C) at infinity
  D) vertical
  E) highly magnified
  Show Answer
  The correct answer is B .
• Question 305: To protect a material from the influnce of an external magnetic field, the materials should be kept Options:
  A) square steel ring
  B) triangular zinc ring
  C) soft iron ring
  D) loop of copper wire
  Show Answer
  The correct answer is C .
• Question 306:

  Which of these is observed when air is pumped out of a discharge tube without lowering its pressure

  Options:
  A) the conductivity of the air increases
  B) the conductivity of the air decreases
  C) conduction does not occur
  D) spark are produced
  Show Answer
  The correct answer is C .
• Question 307: In 24 days a radioactive isotope decreases in mass from 64g to 2g. What is the half life of the radioactive material Options:
  A) 0.75 days
  B) 2.58 days
  C) 4 days
  D) 4.80 days
  E) 6 days
  Show Answer
  The correct answer is D .
• Question 308: Radio waves belong to the class of wave whose velocity is about Options:
  A) 34m/s
  B) 3 ×10⁶m/s
  C) 3 ×10⁸m/s
  D) 3 × 10^-8m/s
  Show Answer
  The correct answer is C .
• Question 309: The inside of a vacuum flask is usually coated with silver to reduce heat lost by Options:
  A) convection
  B) conduction
  C) radiation
  D) absorption
  E) evaporation
  Show Answer
  The correct answer is C .
• Question 310: A Motor Tyre is inflated to pressure of 2.0 x 10⁵Nm^-2 when the temperature of air is 27^oC. What will be the pressure in it at 87^oC assuming that the volume of the Tyre does not change? Options:
  A) 2.6 x 10⁵Nm^-2
  B) 2.4 x 10⁵Nm^-2
  C) 2.2 x 10⁵Nm^-2
  D) 1.3 x 10⁵Nm^-2
  Show Answer
  The correct answer is B .