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 711: In what range of temperature is the expansion of water anomalous? Options:
  A) +208^oC to +212^oC
  B) -80^oC + -76^oC
  C) -4^oC to 0^oC
  D) +96^oC to +100^oC
  E) 0^oC to +4^oC
  Show Answer
  The correct answer is E .
• Question 712:

  How much work is done against the gravitational force on a 3.0 kg object when it is carried from the ground floor to the roof of a building, a vertical climb of 240 m?

  Options:
  A) 7.2 kJ
  B) 4.6 kJ
  C) 6.8 kJ
  D) 8.4 kJ
  Show Answer
  The correct answer is A .
• Question 713: If a load of mass 10N stretched a cord by 1.2cm, what is the total work done? Options:
  A) 6.0 x 10^-2J
  B) 7.6 x 10^-2J
  C) 1.8 x 10^-2J
  D) 6.6 x 10^-2J
  Show Answer
  The correct answer is A .
• Question 714: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 715: Shadows and eclipses result from the Options:
  A) refraction of light
  B) rectilinear propagation of light
  C) defraction of light
  D) reflection of light
  Show Answer
  The correct answer is B .
• Question 716: Which of the following gas laws is equivalent to the work done? Options:
  A) Boyle' law
  B) Charles law
  C) Pressure law
  D) van der Waal's law
  Show Answer
  The correct answer is A .
• Question 717: Which process will increase the rate of oscillation of a pendulum? Options:
  A) decreasing the amplitude of oscillation of the pendulum
  B) decreasing the length of the pendulum
  C) decreasing the mass of the pendulum
  D) increasing the length of the pendulum
  E) increasing the mass of the pendulum.
  Show Answer
  The correct answer is B .
• Question 718: A boy moving with a velocity of 3 ms^-1 is brought to rest by a constant force after travelling 15m. Calculate the retardation. Options:
  A) 0.15ms^-2
  B) 0.30ms^-2
  C) 0.60ms^-2
  D) 3.33ms^-2
  E) 6.66ms^-2
  Show Answer
  The correct answer is B .
• Question 719: Calculate the heat energy lost when 10g of boiling water changes to ice at 0°C. [Specific latent heat of ice 336Jg^-1 . Specific heat capacity of water 4.2Jg^-1 K^-1] Options:
  A) 840J
  B) 3360J
  C) 3420J
  D) 4200J
  E) 7560J
  Show Answer
  The correct answer is E .
• Question 720: A concave lens of focal length 20cm form an image 1/2 the size of the object. The object distance is Options:
  A) 100cm
  B) $\frac{100}{q}$
  C) 60cm
  D) $\frac{60}{7}$
  E) None of the above
  Show Answer
  The correct answer is C .