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 331: The magnetic force on a charged particle moving with velocity v is Options:
  A) proportional to both the magnitude of the charge and the velocity v
  B) independent of the magnitude of the charge
  C) proportional to the velocity v only
  D) proportional to the magnitude of the charge only
  Show Answer
  The correct answer is A .
• Question 332: Which of the following devices may be used to step up the voltage in a d.c. circuit? Options:
  A) a step-up transformer
  B) a d.c. generator
  C) a wattmeter
  D) an induction coil
  Show Answer
  The correct answer is B .
• Question 333:

  In order to view the sun, the most suitable instrument to use is?

  Options:
  A) helioscope
  B) telescope
  C) stroboscope
  D) sun meter
  Show Answer
  The correct answer is A .
• Question 334: A body of mass 5kg initially at rest is acted upon by two mutually perpendicular forces 12N and 5N as shown in fig.3. If the particle moves in the direction QA, calculate the magnitude of the acceleration Options:
  A) 0.40ms^-2
  B) 1.40ms^-2
  C) 0.26ms^-2
  D) 2.60ms^-2
  E) 3.40ms^-2
  Show Answer
  The correct answer is D .
• Question 335:

  The volume of 0.354g of helium at 273°C and 114cm of mercury pressure is 2667cm${}^3$. Calculate the volume

  Options:
  A) 2000.25 cm${}^3$
  B) 200.025 cm${}^3$
  C) 4003.27 cm${}^3$
  D) 2010.25 cm${}^3$
  Show Answer
  The correct answer is B .
• Question 336: The energy contained in a wire when it extended by 0.02m by a force 500 N is Options:
  A) 5J
  B) 10J
  C) 10³J
  D) 10⁴
  Show Answer
  The correct answer is A .
• Question 337: The ground is always cold at night because the Options:
  A) atmosphere absorbs the sun's energy at night
  B) earth radiates heat to the atmosphere at night
  C) sun no longer shine at night
  D) atmosphere reflects the sun's energy at night
  Show Answer
  The correct answer is B .
• Question 338: An electric lamp marked 240v, 60 W is left to operate for an hour. How much energy is generated by the filament? Options:
  A) 3.86 x 10⁵J
  B) 3.56 x 10⁵J
  C) 1.80 x 10⁴J
  D) 2.16 x 10⁵J
  Show Answer
  The correct answer is D .
• Question 339:

  If a body moves with a constant speed and at the same time undergoes an acceleration, its motion is said to be

  Options:
  A) oscillation
  B) circular
  C) rotational
  D) rectilinear
  Show Answer
  The correct answer is B .
• Question 340: A satellite moves in a circular orbit of radius 4R round the earth. The acceleration of the satellite in terms of g is Options:
  A) $\frac{g}{16}$
  B) $\frac{g}{4}$
  C) $\frac{4}{g}$
  D) $\frac{16}{g}$
  Show Answer
  The correct answer is A .