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 1831:

  If a force of 50N stretches a wire from 20m to 20.01m, what is the amount of force required to stretch the same material from 20m to 20.05m?

  Options:
  A) 250N
  B) 200N
  C) 100N
  D) 50N
  Show Answer
  The correct answer is A .
• Question 1832:

  The force required to make an object of mass m, travelling with velocity v, turn in a circle of radius r is

  Options:
  A) $\frac{m{v}^2}{r}$
  B) $\frac{m{r}^2}{x}$
  C) $\frac{mr}{v}$
  D) $\frac{mv}{r^2}$
  Show Answer
  The correct answer is A .
• Question 1833:

  During the transformation of matter from the solid to the liquid state, the heat supplied does not produce temperature increase because

  Options:
  A) all the heat is used to break the bonds holding the molecules of the solid together
  B) the heat capacity has become very large as the substance melts
  C) the heat energy is quickly conducted away
  D) the heat gained is equal to the heat lost by the substance
  Show Answer
  The correct answer is A .
• Question 1834:

  Which of the following is not a vector quantity?

  Options:
  A) momentum
  B) force
  C) temperature
  D) displacement
  Show Answer
  The correct answer is C .
• Question 1835: Which of the following physical quantities is NOT a vector? Options:
  A) velocity
  B) work
  C) force
  D) electric field intensity
  E) magnetic induction
  Show Answer
  The correct answer is B .
• Question 1836: A transverse wave and a longitudinal wave travelling in the same direction in a medium differ essentially in their Options:
  A) frequency
  B) amplitude
  C) direction of vibration of the particles of the medium
  D) period of vibration of the particles of the medium
  Show Answer
  The correct answer is C .
• Question 1837: A force of 15N stretches a spring to a total length of 30cm. An additional force of 10N stretches the spring 5cm further. Find the natural length of the spring Options:
  A) 25.0cm
  B) 22.5cm
  C) 20.0cm
  D) 15.0cm
  Show Answer
  The correct answer is B .
• Question 1838:
  

  A 400 N box is being pushed across a level floor at a constant speed by a force P of 100 N at an angle of 30.0° to the horizontal, as shown in the the diagram below. What is the coefficient of kinetic friction between the box and the floor?

  Options:
  A) 0.19
  B) 0.24
  C) 0.40
  D) 0.22
  Show Answer
  The correct answer is A .
• Question 1839: The relationship between L and the wavelength I of the stationary wave is Options:
  A) 2L = $\lambda$
  B) L = $\lambda$
  C) L = $\frac{\lambda }{3}$
  D) 4L = 3 $\lambda$
  Show Answer
  The correct answer is D .
• Question 1840: A gas at a volume of V₀ in a container at pressure P₀ is compressed to one-fifth of its volume. What will be its pressure if the magnitude of its original temperature T is constant? Options:
  A) P₀/5
  B) 4P₀/5
  C) P₀
  D) 5P₀
  Show Answer
  The correct answer is D .