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 1601:

  

  A force F is applied to a body P as shown in the diagram above. If the body P moves through a distance r, which of the following represents the work done?

  Options:
  A) Fx
  B) F^cosθ/_x
  C) Fx tanθ
  D) Fx sinθ
  E) Fx cosθ
  Show Answer
  The correct answer is E .
• Question 1602: The wavelength of a stationary wave is 24.0cm. What is the distance between a node and the next antinodes? Options:
  A) 6.0cm
  B) 12.0cm
  C) 18.0cm
  D) 24.0cm
  E) 48.0cm
  Show Answer
  The correct answer is A .
• Question 1603: What is the speed of a particle of mass 10^-27kg whose wavelength is 10^-8m.[h = 6.63 x 10^-34Js] Options:
  A) 6.63ms^-1
  B) 66.30ms^-1
  C) 663.00ms^-1
  D) 6630.00ms^-1
  Show Answer
  The correct answer is B .
• Question 1604: A radioisotope has a decay constant of 10^-7s^-1. The average life of the radioisotope is Options:
  A) 1.00 x 10⁷s
  B) 6.93 x 10⁸s
  C) 1.00 x 10^-7s
  D) 6.93 x 10⁷s
  Show Answer
  The correct answer is B .
• Question 1605: The driver in a motor car, of which the total mass is 800kg and which is traveling at 20ms^-1, suddenly observes a stationary dog in his path 50m ahead. If the car brakes can exert a force of 2000N, what will most likely happen? Options:
  A) the car will be able to stop immediately the driver notices the dog
  B) the car will stop 3pm after hitting the dog
  C) the car will stop 20m in front of the dog
  D) the driver will quickly reverse the car
  E) the car will stop 5m beyound the dog
  Show Answer
  The correct answer is C .
• Question 1606: The note produced by a stretched string has a fundamental frequency of 400Hz. If the length of the string is doubled while the tension in the string is increased by a factor of 4, the frequency is Options:
  A) 200Hz
  B) 400Hz
  C) 800Hz
  D) 1600Hz
  Show Answer
  The correct answer is B .
• Question 1607:

  

  The total resistance measured at PQ in the diagram above is

  Options:
  A) 18.0Ω
  B) 11.0Ω
  C) 4.0Ω
  D) 2.0Ω
  Show Answer
  The correct answer is C .
• Question 1608:

  A magnetic needle is suspended first at the earth's north magnetic pole and then at a point on the magnetic equator. The respective angles between the needle and the horizontal are

  Options:
  A) 0${}^o$ and 0${}^o$
  B) 60${}^o$ and 60${}^o$
  C) 90${}^o$ and 90${}^o$
  D) 90${}^o$ and 0${}^o$
  Show Answer
  The correct answer is D .
• Question 1609:

  The bond between silicon and germanium is

  Options:
  A) covalent
  B) trivalent
  C) dative
  D) ionic
  Show Answer
  The correct answer is A .
• Question 1610: Normal atmospheric pressure at sea-level is 10⁵Nm^-2 and the acceleration due to gravity is approximately 10ms^-1. If the atmosphere has a uniform density of 1kgm^-3, its height is Options:
  A) 100m
  B) 1000m
  C) 10 000m
  D) 100 000m
  E) 1000 000m
  Show Answer
  The correct answer is C .