Physics 2022 Past Questions | JAMB


Download PDF

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

31. The amount of energy required to change a kilogram of ice block into water without a change in temperature is?

  • A. specific latent heat of fusion of ice
  • B. specific heat capacity of rice
  • C. heat capacity of rice
  • D. specific heat of vaporization of rice

32.  Which expression gives magnetic flux? 

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

  • A. hyperbola
  • B. parabola
  • C. curve
  • D. straight line

34.  What quantity of heat is required to convert 20 g of ice at 0 ºC to water at the same temperature? (Specific latent heat of ice = 336 Jg−1)

  • A. 7.06 x 103J
  • B. 5.38 x 103J
  • C. 6.72 x 103J
  • D. 1.35 x 103J

35. A train of mass 1600 kg attains a speed of 25 ms−1 in 20 seconds. The power developed in the engine is?

  • A. 2.5 KW
  • B. 80 KW
  • C. 25 KW
  • D. 50 KW

36. The main factor which affects the speed of sound wave is the?

  • A. properties of the medium
  • B. amplitude of the sound wave
  • C. intensity of the sound wave
  • D. loudness of the sound wave

37. A semiconductor is formed by?

  • A. co-ordinate bonds
  • B. electrovalent bonds
  • C. a substance free of bonds
  • D. covalent bonds

38. One of the following is a scalar quantity?

  • A. weight
  • B. momentum
  • C. potential energy
  • D. moments

39. The mercury column in the barometer at notational atmospheric pressure has a height of?

  • A. 0.76 cm at see level
  • B. 760 cm at sea level
  • C. 7.6 cm at sea level
  • D. 76 cm at sea level

40.  If an object just begins to slide on a surface inclined at 30º to the horizontal, the coefficient of friction is?

  • A. √3
  • B. √3/2
  • C. 1/√2
  • D. 1/√3
Scroll to Top