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: 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 2: The resultant of two forces is 50N. If the forces are perpendicular to each other and one of them makes an angle 0f 30^o with the resultant, find its magnitude. Options:
  A) 100.0N
  B) 57.7N
  C) 43.3N
  D) 25.0N
  Show Answer
  The correct answer is C .
• Question 3:

  The pin-hole camera produces a less sharply defined image when the

  Options:
  A) pin-hole is larger
  B) illumination is less
  C) screen is further from the pin-hole
  D) object is further from the pin-hole
  Show Answer
  The correct answer is A .
• Question 4:

  Which of the following is not a vector quantity?

  Options:
  A) momentum
  B) force
  C) temperature
  D) displacement
  Show Answer
  The correct answer is C .
• Question 5: An engine of a car of power 80 kW moves on a rough road with a velocity of 32 ms^-1. The forces required to bring it to rest is Options:
  A) 2.56 x 10⁶N
  B) 2.50 x 10⁶N
  C) 2.80 x 10³N
  D) 2.50 x 10³N
  Show Answer
  The correct answer is D .
• Question 6: How can energy loss be minimized through Eddy-current? Options:
  A) By using high resistance wire
  B) By using insulated soft iron wires
  C) By using low resistance wires
  D) Bu using turns of wires
  Show Answer
  The correct answer is A .
• Question 7:

  A boy standing some distance from the foot of a tall cliff claps his hands and hears an echo 0.5s later. If the speed of sound is 340ms${}^{-1}$, how far is he from the cliff?

  Options:
  A) 680m
  B) 170m
  C) 34m
  D) 85m
  Show Answer
  The correct answer is D .
• Question 8:

  A certain radioactive source emits radiation that was found to be deflected by both magneticand electric fields. The radiation is?

  Options:
  A) beta rays
  B) gamma rays
  C) x-rays
  D) ultra-violet rays
  Show Answer
  The correct answer is A .
• Question 9: When heat is applied to one end of a metal rod, the molecules at the other end soon begin to vibrate with greater amplitude than before because heat has been transferred by Options:
  A) radiation
  B) convection
  C) conduction
  D) evaporation
  Show Answer
  The correct answer is C .
• Question 10:

  Which of the following will increases the boiling point of water?I. Taking it to a high altitude

  II. Dissolving a salt into it

  III. Heating it in a sealed flask

  IV. Increasing the rate of heat supply.

  Options:
  A) I only
  B) III & IV only
  C) II & III only
  D) II only
  Show Answer
  The correct answer is B .