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 1021: If the distance between two stationary charged particle is doubled, the magnitude of the electro-static force between them will be Options:
  A) doubled
  B) halved
  C) a quarter of its former value
  D) unchanged
  E) four times the original value
  Show Answer
  The correct answer is C .
• Question 1022:

  I. Density of the liquid.

  II. Acceleration due to gravity.

  III. Type of container of the liquid.

  IV. The constituents of the liquid.

  Which of the above conditions will NOT affect the pressure of fluid?

  Options:
  A) I and III only
  B) II and III only
  C) III and IV only
  D) I and II only
  Show Answer
  The correct answer is C .
• Question 1023: A satellite moves in a circular orbit of radius 4R round the earth. The acceleration of the satellite in terms of g is Options:
  A) $\frac{g}{16}$
  B) $\frac{g}{4}$
  C) $\frac{4}{g}$
  D) $\frac{16}{g}$
  Show Answer
  The correct answer is A .
• Question 1024:

  A progressive wave equation is represented by y = a sin(150 πt - πx/4). if the phase difference of a progressive wave is 45°, the value of x in the equation is

  Options:
  A) 3 cm
  B) 4 cm
  C) 1 cm
  D) 2 cm
  Show Answer
  The correct answer is C .
• Question 1025: An object of mass 400g and density 600kgm^-3 is suspended with a sting so that half of it is immersed in paraffin of density 900kgm^-3. The tension in the string is Options:
  A) 1.0N
  B) 3.0N
  C) 4.0N
  D) 5.0N
  Show Answer
  The correct answer is B .
• Question 1026:

  A current of 0.5 A flows through a resistor when connected to a 40 V battery. How much energy is dispatched in 2 minutes?

  Options:
  A) 2400 J
  B) 9600 J
  C) 1500 J
  D) 1200 J
  Show Answer
  The correct answer is A .
• Question 1027:

  

  A simple pendulum of mass m moves along an arc pf a circle radius R in a vertical plane as shown above. What is the work done by gravity in a downward swing through the angle q to 0 degree

  Options:
  A) mgR sinθ
  B) MgR (1- cos θ)
  C) mgR
  D) mgR (1 - sinθ)
  Show Answer
  The correct answer is B .
• Question 1028: If the stress on a wire is 10⁷NM^-2 and the wire is stretched from its original length of 10.00 cm to 10.05 cm. The young's modulus of the wire is Options:
  A) 5 . 0 x 10⁴ Nm^-2
  B) 5 . 0 x 10⁵ Nm^-2
  C) 2 . 0 x 10⁸ Nm^-2
  D) 2 . 0 x 10⁹ Nm^-2
  Show Answer
  The correct answer is D .
• Question 1029: What is the cost of running five 50W lamps and four 100W lamps for 10 hours if electrical energy costs 2 kobo per kWh? Options:
  A) N0.65
  B) N0.13
  C) N3.90
  D) N39.00
  E) N234.00
  Show Answer
  The correct answer is B .
• Question 1030: A body of mass 4kg is acted on by a constant force of 12N for 3 seconds. The kinetic energy gained by the body at the end of the time is Options:
  A) 144J
  B) 162J
  C) 81J
  D) 72J
  Show Answer
  The correct answer is B .