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 1531: The sound from a source travelled to the bottom of the sea and the echo was heard 4s later. If the speed of sound in sea water is 1500ms^-1 the depth of the sea is Options:
  A) 6000m
  B) 3000m
  C) 1500m
  D) 375m
  Show Answer
  The correct answer is B .
• Question 1532: A constant force of magnitude F acts on an object of mass 0.04kg initially at rest at a point O. if the speed of the object when it has moved 50m from O is 500ms^-1, what is the value of F? Options:
  A) 0.4N
  B) 100.0N
  C) 250.0N
  D) 1000.0N
  Show Answer
  The correct answer is B .
• Question 1533:

  A carstarts from rest and covers a distance of 40 m in 10 s. Calculatethe magnitude of its acceleration

  Options:
  A) 3.20 ms${}^{-2}$
  B) 0.25 ms${}^{-2}$
  C) 0.80 ms${}^{-2}$
  D) 4.00 ms${}^{-2}$
  Show Answer
  The correct answer is C .
• Question 1534:

  The graph of pressure (P) against the reciprocal of the volume (I/V) in Boyles's law is a?

  Options:
  A) hyperbola
  B) parabola
  C) curve
  D) straight line
  Show Answer
  The correct answer is D .
• Question 1535: The small droplet of water that forms on the grass in the early hours of the morning is Options:
  A) hail
  B) dew
  C) fog
  D) mist
  Show Answer
  The correct answer is B .
• Question 1536: A moving coil galvanometer has a full-scale deflection of 3A equivalent to 30^o deflection. The sensitivity of the instrument is Options:
  A) 33.0
  B) 0.1
  C) 90.0
  D) 10.0
  Show Answer
  The correct answer is D .
• Question 1537: One special advantage of alcohol over mercury as a thermometric liquid is its Options:
  A) low density
  B) low freezing point
  C) high specific
  D) low boiling point
  Show Answer
  The correct answer is B .
• Question 1538:

  

  The wave motion above has a frequency

  Options:
  A) 0.1Hz
  B) 0.2Hz
  C) 5Hz
  D) 10Hz
  E) 100Hz
  Show Answer
  The correct answer is C .
• Question 1539: Which of the following instrument is most accurately for comparing electromotive force (e.m.f) of two cells? Options:
  A) Voltmeter
  B) Meter rule
  C) Galvanometer
  D) Potentiometer
  Show Answer
  The correct answer is D .
• Question 1540:

  

  The water manometer above is measuring the pressure of gas supply. if the specific gravity of mercury is 13.6 and the atmospheric pressure is 70cm of mercury what is the total pressure of the gas supply in cm of water

  Options:
  A) 67cm
  B) 73cm
  C) 949cm
  D) 952cm
  E) 955cm
  Show Answer
  The correct answer is E .