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 2311: A simple pendulum of length 0.4m has a period of 2s. What is the period a similar pendulum of length 0.8m at the same place? Options:
  A) 8s
  B) 4s
  C) 2$\sqrt{2}s$
  D) $\sqrt{2}s$
  Show Answer
  The correct answer is C .
• Question 2312: The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20°C and 80°C respectively is Options:
  A) 3.0 x 10²Km^-1
  B) 3.0 x 10³Km^-1
  C) 5.0 x 10³Km^-1
  D) 3.0 x 10⁴Km^-1
  Show Answer
  The correct answer is B .
• Question 2313: In a large telecommunications auditorium, perforated absorbent materials are used to line the ceiling so as to Options:
  A) Increase the reverberation of sound in the hall
  B) increase the amount of echo in the hall
  C) reduce the hight of the ceiling from the floor
  D) reduce the reverberation of sound in the hall
  Show Answer
  The correct answer is D .
• Question 2314: When an atom loses or gains a charge, it becomes Options:
  A) an electron
  B) an ion
  C) a neutron
  D) a proton
  Show Answer
  The correct answer is B .
• Question 2315: Which of the following best describes the energy changes which take place when a steam engine drives a generator which lights a lamp? Options:
  A) heat $\to$ light $\to$ sound $\to$ kinetic
  B) kinetic $\to$ light $\to$ heat $\to$ electricity
  C) heat $\to$ kinetic$\to$ electricity $\to$ heat $\to$ light
  D) electricity $\to$ kinetic $\to$ heat v light
  E) heat $\to$ sound $\to$ kninetic v electricity
  Show Answer
  The correct answer is C .
• Question 2316: When an object is placed very close to the pole of a concave mirror, the virtual image obtained is Options:
  A) diminished and upright
  B) diminished and inverted
  C) enlarged and inverted
  D) enlarged and upright
  Show Answer
  The correct answer is D .
• Question 2317:

  

  In the diagram above, the ratio of he electric power dissipated in the 6Ω and the 3Ω resistor respectively is

  Options:
  A) 2:1
  B) 2:2
  C) 1:3
  D) 1:2
  Show Answer
  The correct answer is D .
• Question 2318:

  Lamps in domestic lightings are usually in

  Options:
  A) series
  B) divergent
  C) convergent
  D) parallel
  Show Answer
  The correct answer is D .
• Question 2319: One valid assumption of the kinetic theory of gasses is the Options:
  A) the molecules of a gas are constantly in a state of motion and the number of collision remains constant
  B) the number of molecule of gas increases with increasing pressure
  C) as the temperature increases, the number of collision made by the gas molecule remains constant
  D) the molecules of gas are all identical and are very small in size
  Show Answer
  The correct answer is D .
• Question 2320: The instrument used by designers to obtain different color pattern is called? Options:
  A) periscop
  B) sextant
  C) episcope
  D) kaleidoscope
  Show Answer
  The correct answer is D .