Curriculum
Course: Igcse Physics
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Curriculum

Igcse Physics

1. Motion, Forces and Energy

0/161 Dr Dabour Hub Science Diagram and Course Material

2. Thermal Physics

0/75 Dr Dabour Hub Science Diagram and Course Material

3. Waves

0/77 Dr Dabour Hub Science Diagram and Course Material

4. Electricity and Magnetism

0/119 Dr Dabour Hub Science Diagram and Course Material

5. Nuclear Physics

0/39 Dr Dabour Hub Science Diagram and Course Material

6. Space Physics

0/47 Dr Dabour Hub Science Diagram and Course Material
Quiz

1.8.4 Geothermal Energy – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
A main source of heat within the Earth is
sunlight
burning coal
radioactive decay
tides
2.
In a geothermal power station, water is
burned for fuel
taken from the sea only
frozen
pumped down to hot rocks and returns as steam
3.
An advantage of geothermal energy is
it is available all day and night
it can be built anywhere
it needs no building
it always produces large power
4.
A disadvantage is
it needs a large amount of fuel
it produces ash
suitable locations are limited and drilling is expensive
it depends on the Sun
5.
A geothermal plant has 12% efficiency and 6.0 MW electrical output. The input thermal power is
0.72 MW
50 MW
72 MW
6.1 MW
6.
Which resource does not depend on the Sun?
Hydroelectric
Geothermal
Wind
Biofuel
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Part of 1. Motion, Forces and Energy — see every lesson and quiz in this unit.
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