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 501:

  In the molecular explanation, heat is transferred by the

  Options:
  A) free electrons
  B) free atoms
  C) free molecules
  D) free solids
  Show Answer
  The correct answer is A .
• Question 502: Which of the following is a non-renewable energy source? Options:
  A) Coal
  B) Hydro
  C) Ocean waves
  D) Solar
  E) Tides
  Show Answer
  The correct answer is A .
• Question 503: a force of 16N applied 4.0kg block that is at rest on a smooth, horizontal surface. What is the velocity of the block at t = 5 seconds? Options:
  A) 4ms^-1
  B) 10ms^-1
  C) 20ms^-1
  D) 50ms^-1
  E) 80ms^-1
  Show Answer
  The correct answer is C .
• Question 504: The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth? Options:
  A) 1.92N
  B) 2.88N
  C) 6.72N
  D) 8.00N
  E) 12.00N
  Show Answer
  The correct answer is E .
• Question 505: The number of neutrons contained in the nucleus ${}_{92}^{238}U$ is Options:
  A) 92
  B) 146
  C) 238
  D) 330
  Show Answer
  The correct answer is B .
• Question 506: Which statement is NOT correct about Rutherford’s model of the atom? Options:
  A) The diameter of the nucleus is of the order of 10-15m
  B) The mass of an atom is concentrated in the nucleus
  C) The model is applicable to atoms with one electron in the outer shell
  D) The nucleus of an atom is positively charged
  E) The nucleus is surrounded by an electron cloud.
  Show Answer
  The correct answer is C .
• Question 507: Calculate the magnitude of the force due to a magnetic field of 0.40T on an electron moving perpendicular to the field with a speed of 4.00 × 106ms^-1 (e 1.60 × 10^-19C] Options:
  A) 6.40 × ^-10
  B) 6.40× 10^-13N
  C) 2.56 × 10^-13N
  D) 1.60 × 10^-12N
  E) 2.30 × 10^-11N
  Show Answer
  The correct answer is C .
• Question 508: The primary winding of a transformer has 400 turns and its secondary has 100 turns. If a source of e.m.f. of 12V is applied to the primary, the secondary e.m.f. will be Options:
  A) 3V
  B) 6V
  C) 24V
  D) 48V
  Show Answer
  The correct answer is A .
• Question 509: Three non-parallel coplanar forces which can be represented both in magnitude and direction by the three sides of a triangle taken in order will Options:
  A) have any one force being the equilibrant of the other two
  B) make a body move randomly
  C) make a body oscillate
  D) move a body along a straight line
  E) rotate a body about its axis
  Show Answer
  The correct answer is A .
• Question 510: An alternating source is connected in series to a capacitor of capacity reactance ${10}^3\sqrt{3}$ and a resistor of resistance 10³ Ohms. The Impedance of the circuit is... Options:
  A) $2000\sqrt{3}$ Ohms
  B) 2000 Ohms
  C) $1000\sqrt{3}$ Ohms
  D) 1000 Ohms
  Show Answer
  The correct answer is B .