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 951: At different locations on the earth's surface, the earth's magnetic field is Options:
  A) the same in magnitude and direction
  B) the same in magnitude but different in direction
  C) different in both magnitude and direction
  D) different in magnitude but different in direction
  Show Answer
  The correct answer is A .
• Question 952: Heat was supplied to a block of ice at 0^oC until half of it melted. Which of the following statements is true? Options:
  A) the temperature rises and the ice expand
  B) the temperature remains constant and the volume of the ice decreases
  C) the ice gives out heat as it melts and the temperature decreases
  D) the mass remains constant and the temperature increases
  E) the temperature decreases because some heat is lost
  Show Answer
  The correct answer is B .
• Question 953:

  A car of mass 800kg attains a speed of 25m/s in 20secs. The power developed in the engine is?

  Options:
  A) 1.25 x 10${}^4$W
  B) 2.50x 10${}^4$W
  C) 1.25 x 10${}^6$W
  D) 2.50 x 10${}^6$W
  Show Answer
  The correct answer is A .
• Question 954:

  

  The figure above shows two similar bulbs X and Y connected to suitable power supply with F as an appropriate fuse rating, if the filament of X breaks then the

  Options:
  A) Brightness Of Y will reduce
  B) Brightness Of Y will remain constant
  C) Brightness Of Y will increase
  D) fuse F will blow
  Show Answer
  The correct answer is C .
• Question 955: A body of mass 40g loses 80J of heat energy. If the specific heat capacity of the body is 400 Jkg^-1, calculate the change in temperature of the body. Options:
  A) 0.2K
  B) 0.4K
  C) 2.0K
  D) 5.0K
  E) 10.0K
  Show Answer
  The correct answer is D .
• Question 956: The volume of a fixed mass of gas is 10cm³ when its pressure is 400cmHg. Determine the volume of the gas when its pressure is 200cmHg. Options:
  A) 30cm³
  B) 40cm³
  C) 50cm³
  D) 20cm³
  Show Answer
  The correct answer is D .
• Question 957: The lower and upper fixed points of a mercury-in-glass thermometer are marked X and 180 mm respectively. On a particular day the mercury meniscus in the thermometer rises to 60mm. If the corresponding reading on a Celsius scale is 20 ° C, what is the value X? Options:
  A) 6.0mm
  B) 18.0mm
  C) 30.0mm
  D) 60.0mm
  E) 120.0mm
  Show Answer
  The correct answer is C .
• Question 958: What is the length of liquid column in a barometer tube that would support an atmospheric pressure of 102000Nm^-2 if the density of the liquid is 2600kgm^-3? [g = 10ms^-2] Options:
  A) 0.75m
  B) 0.76m
  C) 3.92m
  D) 39.23m
  Show Answer
  The correct answer is C .
• Question 959: 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 960: Temperature is the measure of the Options:
  A) quantity of heat transferred into the molecules of an object
  B) mean kinetic energy of the molecules of the object
  C) kinetic energy of any individual molecule of the substance
  D) amount of work done by the molecules of the object
  Show Answer
  The correct answer is B .