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 261: A piece of iron weights 250 N in air and 200 N in a liquid of density 1000 kgm^-3. the volume of the iron is? Options:
  A) 5.0 x 10^-2 ms^-2
  B) 4.5 x 10^--2 ms^-3
  C) 2.5 x 10^-2 ms^-8
  D) 2.0 x 10^-2 ms^-3
  Show Answer
  The correct answer is C .
• Question 262: Steel is more suitable for permanent magnet than iron because the former Options:
  A) is easily demagnetized by shaing vigorously
  B) is an alloy of many metals
  C) is easily magnetized by alternating current through one cycle
  D) retains magnetism more than iron
  Show Answer
  The correct answer is D .
• Question 263:

  A positively charged particle is placed near a negatively charged particle. What is the direction of the electric force between the two particles?

  Options:
  A) The electric force is directed from the negative particle to the positive particle.
  B) The electric force is zero.
  C) The direction of the electric force cannot be determined.
  D) The electric force is directed from the positive particle to the negative particle.
  Show Answer
  The correct answer is D .
• Question 264: The resistance of a 240V, 60 watt electric filament bulb is Options:
  A) 0.25$\mathrm{\Omega }$
  B) 480$\mathrm{\Omega }$
  C) 60$\mathrm{\Omega }$
  D) 240$\mathrm{\Omega }$
  E) 960$\mathrm{\Omega }$
  Show Answer
  The correct answer is E .
• Question 265: When taking a penalty kick, a footballer applies a force of 30.0N for a period of 0.05s. if the mass of the ball is 0.075kg, calculate the speed with which the ball moves off. Options:
  A) 4.50ms^-1
  B) 11.25ms^-1
  C) 20.00ms^-1
  D) 45.00ms^-1
  Show Answer
  The correct answer is C .
• Question 266: A pressure cooker saves both time and fuel in cooking because inside the cooker, the Options:
  A) boiling point of water is raised
  B) pressure is constant
  C) heat is completely trapped
  D) temperature is evenly distributed
  E) volume of steam varies
  Show Answer
  The correct answer is A .
• Question 267: Which type of radiation does not NOT originate within the nucleus? Options:
  A) alpha
  B) beta
  C) gamma
  D) neutron
  E) x-rays
  Show Answer
  The correct answer is E .
• Question 268:

  A solid weighs10.00N in air,6N when forcefully immersed in water, and 7.0N when fully immersed in a liquid, X. Calculate the relative density of the liquid X.

  Options:
  A) $\frac{5}{3}$
  B) $\frac{4}{3}$
  C) $\frac{3}{4}$
  D) $\frac{7}{10}$
  Show Answer
  The correct answer is C .
• Question 269: Which of the following statements are true in the structure of atoms? Options:
  A) the atoms of the differnt element differ only in the number of protons and electrons
  B) the num,ber of protons equals the number of electrons
  C) atoms are constructed according to the plan of our solar system
  D) all of the above
  E) A and C only
  Show Answer
  The correct answer is B .
• Question 270:

  Which expression gives magnetic flux?

  Options:
  A) qVB sin$\theta$
  B) $\frac{\mu \varphi I}{2\pi r}$
  C) BA cos $\theta$
  D) -N $\frac{d\varphi }{dt}$
  Show Answer
  The correct answer is C .