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 2371:

  A 1000kg elevator is descending vertically with an acceleration of 1.0ms^-2, if the acceleration due to gravity is 10ms^-2, the tension in the suspending cable is

  Options:
  A) 1.0N
  B) 10.0N
  C) 9000.0N
  D) 11000N
  Show Answer
  The correct answer is C .
• Question 2372:

  Three resistors with resistance 200Ω, 500Ω and 1kΩ are connected in series. A 6v battery is connected to either end of the combination. Calculate the potential difference between the ends of 200Ω resistance.

  Options:
  A) 0.71V
  B) 0.7V
  C) 0.82V
  D) 0.8V
  Show Answer
  The correct answer is A .
• Question 2373: An insulated rod when rubbed with a material acquires Options:
  A) a negative charge if it is made of glass and rubbed with silk
  B) no charge if it is made of glass and rubbed with fur
  C) no charge if it is made of copper and rubbed with silk
  D) a positive charge if it is made of copper and rubbed with fur
  Show Answer
  The correct answer is B .
• Question 2374:

  The point at which the molecules of a loaded wire begin to slide across each other resulting in a rapid increase in extension is

  Options:
  A) yield point
  B) proportionality point
  C) deformation point
  D) elastic point
  Show Answer
  The correct answer is A .
• Question 2375:

  A 40 kW electric cable is used to transmit electricity through a resistor of resistance 2.0Ω at 800 V. The power loss as internal energy is?

  Options:
  A) 4.0 x 10²W
  B) 5.0 x 10²W
  C) 4.0 x 10³W
  D) 5.0 x 10³W
  Show Answer
  The correct answer is D .
• Question 2376: When taking a penalty kick, a footballer applies a force of 30.0N for a period of 0.05s. if the mass of the ball is 0.075kg, calculate the speed with which the ball moves off. Options:
  A) 4.50ms^-1
  B) 11.25ms^-1
  C) 20.00ms^-1
  D) 45.00ms^-1
  Show Answer
  The correct answer is C .
• Question 2377: Two long parallel wires X and Y carry currents 3A and 5A each. if the force experienced by unit length is 5 x 10^-5N. the force per unit length experienced by wire Y is Options:
  A) 3 x 10^-5
  B) 3 x 10^-6
  C) 5 x 10⁵
  D) 5 x 10^-5
  Show Answer
  The correct answer is D .
• Question 2378: Pure silicon can be converted to a p-type by adding a controlled amount of Options:
  A) trivalent atoms
  B) tetravalent atoms
  C) pentavalent atoms
  D) hexavalent atoms
  Show Answer
  The correct answer is A .
• Question 2379:

  

  In the above, a voltage V is applied across the terminals P and Q. The voltage across the 1 ohm resistor is

  Options:
  A) V/8
  B) V/4
  C) V/3
  D) V/2
  Show Answer
  The correct answer is C .
• Question 2380:

  During the nuclear reaction described by

  235	W →	235	X→	231	Y
  92		93		91

  The particles emitted are respectively

  Options:
  A) α and α
  B) α and β
  C) β and β
  D) β and α
  Show Answer
  The correct answer is D .