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1.7.1a Energy stores and energy transfers

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Question 6

A solar-powered weather station has components powered by a rechargeable battery linked to a solar panel.

a.

Name the energy store in the battery.

[1]
b.

The main processor and the wireless transmitter in the weather station are connected in parallel. State one advantage of this parallel connection.

[1]
c.

Under conditions of peak sunlight, the efficiency of the solar panel is 16%16\%16%. The useful power output supplied by the solar panel is 12 W12\text{ W}12 W.

State what is meant by 16%16\%16% efficiency.

[1]
d.

Under conditions of peak sunlight, the efficiency of the solar panel is 16%16\%16%. The useful power output supplied by the solar panel is 12 W12\text{ W}12 W.

Calculate the solar power input to the solar panel.

[2]
e.

Suggest two advantages of using a solar panel to power this remote weather station instead of connecting it to the mains electricity grid.

[2]
Markscheme

1.7.1a Energy stores and energy transfers Questions

  1. IGCSE
  2. /Physics
  3. /1.7.1a Energy stores and energy transfers

229 exam-style questions on CIE IGCSE Physics 1.7.1a Energy stores and energy transfers. Each one has a worked solution and a mark scheme showing where the marks go.

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