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 661:

  

  Two taxis leave Benin and Agbor some 80km apart at 1200hr as shown above. from the distance time graph shown the distance of their meeting point P, from Benin and the time of their meeting are

  Options:
  A) 27km, 1218hr
  B) 29km, 1315hr
  C) 40km, 1418hr
  D) 53km, 1436hr
  E) 60km, 1500hr
  Show Answer
  The correct answer is B .
• Question 662: 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 .
• Question 663: A cell of e.m.f 12V and internal resistance 4Ω is connected to an external resistor of resistance 2Ω. Find the current flow. Options:
  A) 5 A
  B) 4 A
  C) 3 A
  D) 2 A
  Show Answer
  The correct answer is D .
• Question 664: Equal masses of copper and rubber are raised to the same temperature. After sometimes, the copper was observed to be at a lower temperature because Options:
  A) the specific heat capacity of copper is lower than that of rubber
  B) copper expands more than rubber
  C) the specific heat capacity of rubber is lower than that of copper
  D) rubber expands more than copper
  Show Answer
  The correct answer is A .
• Question 665: A brass rod is 2m long at a certain temperature. What is the length for a temperature rise of 100K, if the expansivity of brass is 18 x 10^-6K^-1? Options:
  A) 2.0036m
  B) 2.0018cm
  C) 2.1800
  D) 2.0360m
  Show Answer
  The correct answer is A .
• Question 666: A piece of stone attached to one end of a string is whirled round in a horizontal circle and the string suddenly cuts. The stone will fly off in a direction Options:
  A) perpendicular to the circular path
  B) parallel to the circular path
  C) tangential to the circular path
  D) towards the center of the circle
  Show Answer
  The correct answer is C .
• Question 667:

  The energy associated with the photon of a radio transmission at 3 x 10⁵ Hz is

  [h = 6.63 x 10^-34Js]

  Options:
  A) 2.00 x 10^-28J
  B) 1.30 x 10^-28J
  C) 2.00 x 10^{- 29}J
  D) 1.30 x 10^-29J
  Show Answer
  The correct answer is A .
• Question 668: Which of the following features is NOT a characteristic of natural radioactivity? Options:
  A) Radioactivity is a nuclear phenomenon
  B) Radioactivity is exhibited only by elements of mass number greater than 206
  C) The radioactivity of an element is affected by electric and magnetic fields in the surroundings
  D) Radioactive substances emits three types of radiations, a-rays, $\beta$-rays and y-rays
  E) The radioactive element is transformed into a new element
  Show Answer
  The correct answer is B .
• Question 669:

  

  The frequency of the wave in the diagram above is

  Options:
  A) 0.17 Hz
  B) 0.25 Hz
  C) 1.57 Hz
  D) 1.05 Hz
  Show Answer
  The correct answer is B .
• Question 670:

  I. change of state

  II. Diffusion

  III. Radiation

  IV. Osmosis

  Which of the processes above can be explained using the kinetic theory?

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