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 361:

  I. The motion of the tyres of a moving car.

  II. The motion of a loaded test tube oscillated

  vertically.

  III. The beating of the heart.

  IV. A stone tied to a string and whirled round.

  V. The motion of the pistons in a gasoline engine.

  Which of the motions above is simple harmonic?

  Options:
  A) III, IV and V only
  B) II, III and V only
  C) II, III and IV only
  D) I,II and III only
  Show Answer
  The correct answer is B .
• Question 362:

  The refractive index of a liquid is 1.5. If the velocity of light in vacuum is 3.0 x 10${}^{8}m{s}^{-1}$, the velocity of light in the liquid is

  Options:
  A) 1.5 x 10${}^{8}m{s}^{-1}$
  B) 2.0 x 10${}^{8}m{s}^{-1}$
  C) 3.0 x 10${}^{8}m{s}^{-1}$
  D) 4.5 x 10${}^{8}m{s}^{-1}$
  Show Answer
  The correct answer is B .
• Question 363: The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth? Options:
  A) 1.92N
  B) 2.88N
  C) 6.72N
  D) 8.00N
  E) 12.00N
  Show Answer
  The correct answer is E .
• Question 364:

  

  The diagram above shows a velocity - time graph. The statement that is true about this motion is that the car

  Options:
  A) has no acceleration between point F and G
  B) decelerates between F and H
  C) has a constant soeed between points E and F
  D) Accelerates between points F and G
  Show Answer
  The correct answer is A .
• Question 365: A cube of sides 0.1m hangs freely from a string. What is the upthrust on the cube when totally immersed in water? [density of water is 1000kgm^-2, g = 10ms^-2] Options:
  A) 1000 N
  B) 700 N
  C) 110 N
  D) 10 N
  Show Answer
  The correct answer is D .
• Question 366: The instrument to measure the relative density of light is Options:
  A) thermometer
  B) hydrometer
  C) spring balance
  D) beaker
  Show Answer
  The correct answer is B .
• Question 367: A box is pulled a distance s along a smooth horizontal floor by a force of magnitude F, inclined at an angle θ to the horizontal. The work done is Options:
  A) Fs cos θ
  B) Fs cosec θ
  C) Fs sec θ
  D) Fs sin θ
  E) Fs tan θ
  Show Answer
  The correct answer is A .
• Question 368: The following are some units i. Ns ii. Mm iii. Nm^-2 iv. J^oK^-1. What are the units of latent heat? Options:
  A) i
  B) ii
  C) iii
  D) iv
  Show Answer
  The correct answer is D .
• Question 369: which of the following statements are TRUE of isotopes? i. isotopes of an element have the same chemical properties because they have the same number of electrons. ii. isotopes of elements are normally separated using physical properties. iii. isotopes of an element have the same number of protons in their nuclei. Options:
  A) i and ii only
  B) i and iii only
  C) ii and iii only
  D) i, ii, and iii
  Show Answer
  The correct answer is B .
• Question 370: When two objects P and Q are supplied with the same quantity of heat, the temperature change in P is observed to be twice that of Q. The mass of P is half that of Q. The ratio of the specific heat capacity pf P to Q is Options:
  A) 1:4
  B) 4:1
  C) 1:1
  D) 2:1
  Show Answer
  The correct answer is C .