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 651: Heat losses to the surrounding is possible through the following except Options:
  A) Conduction
  B) Convection
  C) Radiation
  D) Expansion
  Show Answer
  The correct answer is D .
• Question 652:

  A missile is launched with a speed of 75 ms-1 at an angle of 22° above the surface of a warship. Find the horizontal range achieved by the missile. Ignore the effects of air resistance.

  [Take g = 10 ms-2]

  Options:
  A) 195
  B) 271 m
  C) 391 m
  D) 136 m
  Show Answer
  The correct answer is C .
• Question 653: Which of the following obeys Ohm's Law? Options:
  A) Glass
  B) Diode
  C) All electrolytes
  D) All metals
  Show Answer
  The correct answer is D .
• Question 654: Which of the following statements is correct? Silvered walls of a vacuum flask are used to prevent Options:
  A) heat loss due to conduction
  B) vacuum loss
  C) heat entry into the inner flask due to convection
  D) heat loss due to radiation
  E) heat loss due to convection
  Show Answer
  The correct answer is D .
• Question 655: If two parallel conductors carry currents flowing in the same direction, the conducts will Options:
  A) attract each other
  B) repel each other
  C) both move in the same direction
  D) have no effect on each other
  Show Answer
  The correct answer is A .
• Question 656: A machine has a velocity ratio of 5. It requires a 50kg weight to overcome a 200kg weight. The efficiency is Options:
  A) 4%
  B) 5%
  C) 40%
  D) 50%
  E) 80%
  Show Answer
  The correct answer is E .
• Question 657: A spring of length 25cm is extended to 30cm by a load of 150N attached to one of its end, what is the energy stored in the spring? Options:
  A) 3750J
  B) 2500J
  C) 3.75J
  D) 2.50J
  Show Answer
  The correct answer is C .
• Question 658: Marching soldiers crossing a suspension bridge are usually advised to break their steps to avoid damaging the bridge owing to Options:
  A) oscillation
  B) resonance
  C) swinging
  D) vibration
  Show Answer
  The correct answer is B .
• Question 659: If a tube of small radius opened at both ends is placed in a liquid, the liquid will Options:
  A) remain at the same level irrespective of whether the liquid wet the glass or not
  B) fall below the liquid level if the liquid wets the glass
  C) falls below the liquid level if the liquid does not wet the glass
  D) rise above the liquid level if the liquid does not wet the glass
  Show Answer
  The correct answer is C .
• Question 660: Which is a stringed Instrument? Options:
  A) drum
  B) flute
  C) piano
  D) saxophone
  E) trumpet
  Show Answer
  The correct answer is C .