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 1111: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 1112: Which of the following is a pure semiconductor? Options:
  A) carbon
  B) silicon
  C) transistor
  D) phosphorus
  Show Answer
  The correct answer is B .
• Question 1113: A short chain is sometimes attached to the back of a petrol tanker to? Options:
  A) generate more friction
  B) ensure the balancing of the tanker
  C) caution the driver when overspeeding
  D) conduct excess charges to the car
  Show Answer
  The correct answer is D .
• Question 1114: If a source of sound is moving, a stationary listener will hear a sound of different frequency. This is called Options:
  A) Doppler effect
  B) Resonance
  C) Ultra sound
  D) Diffraction of sound
  E) Rarefaction
  Show Answer
  The correct answer is A .
• Question 1115: What is the escape velocity of a satellite launched from the earth’s surface? (Take g as 10ms^-2 and the radius of the earth as 6.4 × 10⁶m) Options:
  A) 7.80 × 10-3ms^-1
  B) 1.13 × 10-4ms^-1
  C) 3.56 × 107ms^-1
  D) 6.00 × 107ms^-1
  E) 1.20 × 108ms^-1
  Show Answer
  The correct answer is B .
• Question 1116: 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 1117: A body of weight 20N displaces 12N of the liquid in which it is immersed. What is the upthrust of the liquid on the body? Options:
  A) 240N
  B) 32N
  C) 20N
  D) 12N
  E) 8N
  Show Answer
  The correct answer is D .
• Question 1118: A body has masses of 0.013kg and 0.012 kg in oil and water respectively. If the relative density of oil is 0.875 calculate the mass of the body. Options:
  A) 0.02 kg
  B) 0.03kg
  C) 0.04kg
  D) 0.05kg
  E) 0.06kg
  Show Answer
  The correct answer is A .
• Question 1119: 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 .
• Question 1120: As a result of air at the top of a barometer, the height of the mercury column is 73.5cm when it should be 75.0cm; the volume of the space above the mercury is 8.0cm³. Calculate the correct barometer height when the barometer reads 74.0cm and the volume of the space above the mercury is 6.0cm³. Options:
  A) 72.0cm
  B) 74.5cm
  C) 75.1cm
  D) 76.0cm
  Show Answer
  The correct answer is D .