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 381: Electric motor primarily converts Options:
  A) electrical energy into chemical energy
  B) electrical energy into heat energy
  C) kinetic energy into potential energy
  D) electrical energy into mechanical energy
  E) mechanical energy into light energy
  Show Answer
  The correct answer is D .
• Question 382:

  I. Increase the melting point of the liquid.

  II. Increase the boiling point of the liquid.

  III. Decrease the melting point of the liquid.

  IV. Decrease the boiling point of the liquid.

  Which of the statement above about the effect on increase in pressure in a liquid are correct?

  Options:
  A) I and II only
  B) I and III only
  C) II and III only
  D) III and IV only
  Show Answer
  The correct answer is C .
• Question 383: The use of electrical fuses in domestic wiring is Options:
  A) to prevent and electrical shock
  B) to supply electricity to all the electrical appliances
  C) to allow electricity to flow easily through the mains to all the circuits
  D) to cut off the mains supply it too high a current flows
  E) to fuse all the circuit into one
  Show Answer
  The correct answer is D .
• Question 384:
  

  Calculate the effective capacitance of the circuit in the diagram given

  Options:
  A) 4μf
  B) 3μf
  C) 2μf
  D) 1μf
  Show Answer
  The correct answer is D .
• Question 385: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E .
• Question 386:

  

  The diagram above shows a solid figure with base PQ and center of gravity G on a inclined plane. Which of the following statements is correct

  Options:
  A) The solid will fall over if the vertical line through G lies outside the base
  B) The solid will fall over if the vertical line through lies inside the base
  C) The solid will not fall over if the vertical line through G lies outside the base
  D) The solid can never fall over
  Show Answer
  The correct answer is A .
• Question 387: A block of ice floats on water inside a container. If the block of ice gets completely melted, the level of water in the container will Options:
  A) increase
  B) remain the same
  C) decrease
  D) first decrease and then increase
  Show Answer
  The correct answer is B .
• Question 388: A man at the back of a crowd watches a parade by holding a plane mirror just above his head. The parade passes 6 metres behinde his head and the mirror is 0.25m in front of the man. How far does the image in the mirror appear to be from the man? Options:
  A) 6.50m
  B) 6.25m
  C) 6.00m
  D) 5.75m
  E) 5.50m
  Show Answer
  The correct answer is A .
• Question 389: An equipment whose power is 1500W and resistance is 375 ohms would draw a current of Options:
  A) 0.10A
  B) 2.00A
  C) 4.00A
  D) 77.5A
  Show Answer
  The correct answer is B .
• Question 390:

  One of the following readings represents the measurement of thelength of a metal rod using vernier callipers. Taking the reading accuracy into consideration, the most likely one is

  Options:
  A) 5.16cm
  B) 5.165cm
  C) 5.0cm
  D) 5.160cm
  Show Answer
  The correct answer is A .