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 621: A stone is thrown with a speed of 10ms at an angle of 30° to the horizontal, Calculate its time of flight, (g = 10ms²) Options:
  A) 0.5s
  B) 1.0s
  C) 1.7s
  D) 2.0s
  E) 3.4s
  Show Answer
  The correct answer is B .
• Question 622: Which of the following statements is NOT correct? Options:
  A) A galvanometer can be converted to an ammeter with a different range by connecting a high resistance in series
  B) An electric current always produces a magnetic field
  C) Maxwell's screw rule states that if a corkscrew moves inthe direction of the current, the hand turns in the direction of the lines of force
  D) Electromagnets are used in electric bells and telephone recievers
  E) The lines of force round a straight current carrying conductor are circular
  Show Answer
  The correct answer is A .
• Question 623: An electric charge could be transmitted through Options:
  A) wood, rubber and stone
  B) paper, clay and plastic
  C) glass, acid and cloth
  D) The human body, water and metals
  E) all of the above
  Show Answer
  The correct answer is D .
• Question 624: The d.c generator has essentially the same components as the a.c generator except the presence of? Options:
  A) slip-ring
  B) carbon brushes
  C) split ring
  D) armature
  Show Answer
  The correct answer is C .
• Question 625: When a telescope is in normal use, the final image is at Options:
  A) Infinity
  B) The focus
  C) The radius of curvature
  D) The near point
  Show Answer
  The correct answer is A .
• Question 626:

  A projectile is projected with an initial velocity u, at an angle θ to the horizontal. The maximum height attained is.

  Options:
  A) U² sin $\frac{\theta }{g}$
  B) 2U² sin² $\frac{\theta }{g}$
  C) U sin² $\frac{\theta }{g}$
  D) U² sin²$\frac{\theta }{g}$
  Show Answer
  The correct answer is D .
• Question 627:

  I. Jet propelled aircraft

  II. Rocket propulsion

  III. The recoil of a gun

  IV. A person walking

  Which of the above is based on Newton's third law of motion

  Options:
  A) I and II only
  B) I, II, III, and IV only
  C) I and III only
  D) I, II and III only
  Show Answer
  The correct answer is D .
• Question 628: Lenz’s law of electromagnetic induction states that Options:
  A) a force is exerted on a current carrying conductor in a magnetic field
  B) the induced current in a conductor is in such a direction as to oppose the change producing it
  C) the magnitude of the induced electromotive force in a circuit is proportional to the rate of change of the number of lines of force linking the circuit
  D) the magnitude of the induced electromotive force is proportional to the current producing the magnetic flux
  E) whenever there is a change in the magnetic flux linked with the circuit, an electromotive is induced
  Show Answer
  The correct answer is B .
• Question 629: A man exerts a pressure of 2.8 x 10³Nm^-2 on the ground and has 4 x 10^-2m² of his feet in contact with the ground. The weight of the man is Options:
  A) 102N
  B) 70N
  C) 140N
  D) 112N
  Show Answer
  The correct answer is D .
• Question 630:

  The graph of pressure (P) against the reciprocal of the volume (I/V) in Boyles's law is a?

  Options:
  A) hyperbola
  B) parabola
  C) curve
  D) straight line
  Show Answer
  The correct answer is D .