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: Heat may be transferred by conduction, convection and radiation. By which of these methods does heat travel through vacuum? Options:
  A) conduction only
  B) convection only
  C) radiation only
  D) non of these methods
  Show Answer
  The correct answer is C .
• Question 1602: A piece of stone attached to one end of a string is whirled round in a horizontal circle and the string suddenly cuts. The stone will fly off in a direction Options:
  A) perpendicular to the circular path
  B) parallel to the circular path
  C) tangential to the circular path
  D) towards the center of the circle
  Show Answer
  The correct answer is C .
• Question 1603: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E .
• Question 1604: An object 8cm in front of a plane mirror moves at a speed of 6cm s^-1 away from the mirror. What will be the distance separating the object and the image after 2s? Options:
  A) 8cm
  B) 12cm
  C) 20cm
  D) 28cm
  E) 40cm
  Show Answer
  The correct answer is E .
• Question 1605: Heat is supplied uniformly at the rate of 100W to 1.0 x 10^-2kg of a liquid for 20 seconds. If the temperature of the liquid rises by 5^oC, then the specific heat capacity of the liquid is Options:
  A) 2.0 x 10²Jkg^-1k^-1
  B) 2.0 x 10²Jkg^-1
  C) 4.0 x 10⁴Jkg^-1k^-1
  D) 4.0 x 10⁴kg^-1
  E) 8.4 x 10³Jkg^-1k^-1
  Show Answer
  The correct answer is C .
• Question 1606: When cold water is poured on a can containing hot water, the can collapses because the Options:
  A) steam condeses and occupies the partial vacuum in the can
  B) external air pressure counter balances the pressure within the can
  C) steam expands to occupy the vacuum remaining in the can
  D) external pressure becomes greater than the pressure within the can.
  Show Answer
  The correct answer is D .
• Question 1607: For a concave mirror to form a teal diminished image, the object must be placed Options:
  A) behind the mirror
  B) between the mirror and its focus
  C) between the focus and the centre of curvature
  D) at the centre of curvature
  E) at a distance greater than the radius of curvature
  Show Answer
  The correct answer is E .
• Question 1608:

  

  In the diagram above, which of the angles ${\theta }_1$ , ${\theta }_2$ , ${\theta }_3$ and ${\theta }_4$ is the angle of deviation of the ray of light passing through the glass prism XYZ?

  Options:
  A) ${\theta }_3$
  B) ${\theta }_2$
  C) ${\theta }_1$
  D) ${\theta }_4$
  Show Answer
  The correct answer is C .
• Question 1609: 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 1610: The function of a 5-A fuse included in a circuit supplying a household refrigerator with power is to keep the Options:
  A) Temperature of the refrigerator low and constant
  B) keep current supplied to the refrigerator below 5A
  C) Voltage supply constant
  D) Current supplies to the refrigeration
  Show Answer
  The correct answer is B .