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 91:

  A train of mass 1600 kg attains a speed of 25 ms${}^{-1}$ in 20 seconds. The power developed in the engine is?

  Options:
  A) 2.5 KW
  B) 80 KW
  C) 25 KW
  D) 50 KW
  Show Answer
  The correct answer is D .
• Question 92: A stone and a feather are dropped from the same height above the earth surface. ignoring air resistance, which of the following is correct? Options:
  A) the feather will be brown away by the wind while stone will drop steadily
  B) the stone and the feather will both reach the ground a the same time
  C) the feather will reach the ground first
  D) the stone will reach the ground first
  Show Answer
  The correct answer is B .
• Question 93:

  A body starts from rest and moves with uniform acceleration of 6ms^-2. What distance does it cover in the third seconds

  Options:
  A) 15m
  B) 18m
  C) 27m
  D) 30m
  Show Answer
  The correct answer is A .
• Question 94: 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 95: An example of a scalar quantity is Options:
  A) velocity
  B) weight
  C) electric charge
  D) acceleration due to gravity
  E) momentum
  Show Answer
  The correct answer is C .
• Question 96: A glass bottle of initial volume 2 x 10⁴ cm³ is heated from 20^oC to 50^oC. If the linear expansivity of glass is 9 x 10⁶K^-1, the volume of the bottle at 50^oC is Options:
  A) 20016.2cm³
  B) 20005.4cm³
  C) 20008.1cm³
  D) 20013.5cm³
  Show Answer
  The correct answer is A .
• Question 97: a tap supplies water at 26^oC while another supplies water at 82^oC. If a man wishes to bathe with water at 40^oC the ratio of hot mass of hot water to that of cold water required is Options:
  A) 1:3
  B) 3:1
  C) 3:7
  D) 7:3
  E) 15:8
  Show Answer
  The correct answer is A .
• Question 98:

  I. Mass

  II. Density

  III. Temperature

  IV. Nature of substance

  Which of the above affect diffusion?

  Options:
  A) I and II only
  B) I,II and IV only
  C) II, III and IV only
  D) I, II, III and IV
  Show Answer
  The correct answer is B .
• Question 99:

  

  The fig above shows two connected bodies of masses M1 and M2 in equilibrium under gravity. The tension in the upper string is

  Options:
  A) (m1-m2)g
  B) m1g
  C) m2g
  D) (m1+m2)g
  Show Answer
  The correct answer is D .
• Question 100:

  A positively charged rod X is brought near an uncharged metal sphere Y and is then touched by a finger with X still in place. When the finger is removed, the result is that Y has

  Options:
  A) no charge and a zero potential
  B) a positive charge and a zero potential
  C) a negative charge and a positive potential
  D) a negative charge and a negative potential
  Show Answer
  The correct answer is D .