Physics 2017 Past Questions | JAMB

Study the following Physics past questions and answers for JAMBWAEC  NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.

1. Which is the incorrect formula for a body accelerating uniformly?

  • A. a = v2 − \(\frac{u^2}{2}\)
  • B. v2 = u2 + 2as
  • C. s = ut + \(\frac{1}{2}\) at2
  • D. v2 − u2= 2as

2. Which of the following is not an electromagnetic radiation?

  • A. x – ray
  • B. Radio waves
  • C. sunlight
  • D. sound waves

3. Calculate the electric field intensity between two plates of potential difference 6.5V when separated by a distance of 35cm.

  • A. 18.57NC\(^{-1}\)
  • B. 53.06N C\(^{-1}\)
  • C. 2.28NC\(^{-1}\)
  • D. 0.80NC\(^{-1}\)

4. Why do soldiers march disorderly while crossing a bridge?

  • A. To prevent resonance on the bridge
  • B. To set the bridge into resonance
  • C. To make the b ridge collapse
  • D. To spread their weight evenly on the bridge

5.

Calculate the upthrust on an object of volume 50cm3 which is immersed in liquid of density 103kgm-3 [g = 10ms-2]

  • A. 0.8N
  • B. 2.5N
  • C. 0.5N
  • D. 1.0N

6.  Under what conditions are cathode rays produced in a discharge tube?

  • A. High pressure and low voltage
  • B. High pressure and high voltage
  • C. Low pressure and low voltage
  • D. Low pressure and high volatge

7. Under which of the following conditions is workdone

  • A. A man supports a heavy food above his head with his hands
  • B. A boy climbs onto a table
  • C. A man pushes unto a table
  • D. A woman holds a pot of water

8. Calculate the specific latent heat of vaporization of steam of 1.13 x 106J of heat energy is required to convert 15kg of steam to water.

  • A. 7.53 x 105 Jkg\(^{-1}\)
  • B. 7.53 x 10-2Jkg\(^{-1}\)
  • C. \(7.53 \times 10^{4}\)Jkg\(^{-1}\)
  • D. 7.53 x 10-3Jkg\(^{-1}\)

9. A cell of internal resistance 2 π supplies current to a 6 π resistor. The efficiency of the cell is

  • A. 12.0%
  • B. 25.0%
  • C. 33.3%
  • D. 75.0%

10. Which of the following statements is NOT correct?

  • A. Molecules of a liquid are stationary
  • B. Brownian motion is an evidence of particle nature of matter
  • C. Matter is made up of molecules
  • D. The molecules of matter are in constant motion
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