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Question 19M.1.SL.TZ2.29

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.SL.TZ2.29
Level SL Paper 1 Time zone TZ2
Command term Question number 29 Adapted from N/A
29.
[Maximum mark: 1]
19M.1.SL.TZ2.29

Three methods for the production of electrical energy are

I. wind turbine

II. photovoltaic cell

III. fossil fuel power station.

Which methods involve the use of a primary energy source?

A. I and II only

B. I and III only

C. II and III only

D. I, II and III

[1]

Markscheme

D

Examiners report

This question seems to have prompted some discussion among teachers and slightly more candidates chose response A than the others. Primary energy is defined as coming from a natural resource so whereas fossil fuels are non-renewable they are a primary energy resource. Also, a photovoltaic cell produces electricity, defined as a secondary energy source from a primary energy source, the sun. The clue is given in the question ‘involve the USE of a primary energy source’.

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