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Physics 2022 WAEC Past Questions

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41

Which of the following concepts is a method of heat transfer that does not require a material medium?

  • A. Conduction
  • B. Diffusion
  • C. Convection
  • D. Radiation
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42

Which of the folowing statements about light travelling from one material medium to another is not correct?

  • A. The refracted angle is less than the incident angle if the speed is higher in the first material
  • A. Its wavelength does not change
  • B. It bends away from the normal if the speed is lower in the first material
  • D. Its frequency changes.
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43

The engine of a car provides a forward force of 1240 N and the total resistive force on the car is 800N. If the mass of the car is 1220 kg, determine the distance the car has to travel from the rest before acquiring a speed of 4 m s\(^{-1}\).

  • A. 44.0 m
  • B. 22.2 m
  • C. 11.1 m
  • D. 5.5 m
View Answer & Discuss (3) WAEC 2022
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
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44

A quantity of water at 0 °C is heated to 30 °C. For each degree rise in temperature, its density will---------

  • A. rise steadily
  • B. fall steadily
  • C. fall and then rises
  • D. rise and then falls
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45

A small object of mass 50 g is released from a point A. Determine the velocity of the object when it reaches a point B, a vertical distance of 30m below A. [g = 10 ms\(^{-2}\)

  • A. 1.5 ms\(^{-1}\)
  • B. 6.0 m s\(^{-1}\)
  • C. 17.3 m s\(^{-1}\)
  • D. 24.5 m s\(^{-1}\)
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WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709