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 501: A positive charged rod X is brought near as 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 zero potential
  C) a negative charge and positive potential
  D) a negative charge and a negative potential
  Show Answer
  The correct answer is D .
• Question 502: When the brakes in a car are applied, the frictional force force on the tyres is Options:
  A) is a disadvantage because it is in the direction of the motion of the car
  B) is a disadvantage because it is in the opposite direction of the motion of the car
  C) is an advantage because it is in the direction of the motion of the car
  D) is an advantage because it is in the opposite direction of the motion of the car
  Show Answer
  The correct answer is D .
• Question 503: If a cage containing a truck of coal weighing 750 kg is raised to a height of 90 m in a minute, what is the total power expended?
  [g = 10 ms²] Options:
  A) 11.50 kw
  B) 12.60 kw
  C) 11.25 kw
  D) 12.10 kw
  Show Answer
  The correct answer is C .
• Question 504:

  Which of the following is NOT an example of elementary modern physics?

  Options:
  A) Classical mechanics
  B) Quantum mechanics
  C) Special relativity
  D) Nuclear physics
  Show Answer
  The correct answer is A .
• Question 505: Which of the following is true of the loudness of sound? It Options:
  A) depends on the square of the amplitude of the vibrating body
  B) is proportional to the distance of the observer from the source of the sound
  C) is greatest in vacuum
  D) is dependent in vacuum
  Show Answer
  The correct answer is A .
• Question 506: A manometer is an instrument used for measuring Options:
  A) Relative density of liquid
  B) Pressure in liquids and gases
  C) Humidity
  D) Atmospheric pressure
  Show Answer
  The correct answer is B .
• Question 507: A lens of focal length 12.0cm forms an upright image three times the size of a real object. The distance between the object and the images is Options:
  A) 8.0cm
  B) 16.0cm
  C) 24.0cm
  D) 32.0cm
  Show Answer
  The correct answer is D .
• Question 508: The boys are communicating with each other by stretching a string passing through a hole punched in the bottom of each of two tin cans. The physical principle employed is that sound travels Options:
  A) mainly through air
  B) fainter in stretched string
  C) faster through gases than in solids and liquids
  D) with greater ease through a string than in air
  E) none of the above is correct
  Show Answer
  The correct answer is D .
• Question 509: 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 510: Which of the following is NOT an effect that can be produced by an electric current? Options:
  A) heat
  B) light
  C) sound
  D) motion
  E) none of the above
  Show Answer
  The correct answer is E .