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3 marksNature, Forms, and Sources of Energy

CAPE Environmental Science Unit 2 · 2021 · Paper 2 · Question 3(a)(ii)

A diagram shows the sequence of energy conversion that occurs when a lamp is plugged into a wall socket and turned on.

Explain why one of the types of energy labelled on the diagram is usually considered 'unwanted'.

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Other parts of this question

  1. 3(a)(i)Name the types of energy, I, II and III, involved in the energy conversion process.[3 marks]
  2. 3(b)(i)State TWO environmental impacts of energy use in the Caribbean.[2 marks]
  3. 3(b)(ii)Discuss how energy use can result in ONE of the environmental impacts stated in (b)(i).[4 marks]
  4. 3(c)(i)Explain why, in terms of energy production, the depletion of energy resources is classified as a cost to society.[3 marks]
  5. 3(c)(ii)Calculate the total cost to society of the particulate matter formation in a hard-coal-fired power plant. Express this value as a percentage.[5 marks]

More practice: the rest of this paper · more Nature, Forms, and Sources of Energy questions · all CAPE Environmental Science Unit 2 past papers