Curriculum
Course: Alhussan Physics — Stage 8
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Curriculum

Alhussan Physics — Stage 8

Chapter 6: Forces, Motion and Pressure

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Chapter 7: Light

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Chapter 8: Magnetism and Electromagnets

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Chapter 9: Energy Resources

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Chapter 10: The Earth in Space (Galaxies and Asteroids)

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Quiz

9.4 Renewable resources: solar and geothermal energy — Quiz

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  • Questions count: 10
  • Passing grade: B+
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1.
Which device turns sunlight directly into electricity?
Solar cell
Generator
Turbine
Boiler
2.
Solar cells have increased in efficiency from 5% to over:
30%
100%
90%
10%
3.
Which term matches this definition? “Energy from hot rocks under the ground.”
Solar energy
Tidal energy
Geothermal energy
Nuclear energy
4.
True or false? A solar cell has no moving parts.
True
False
5.
For satellites, ____ is often the only energy source.
coal
wind
solar
tidal
6.
True or false? Solar water heaters use solar cells.
True
False
7.
The graph shows a solar panel's output during a day. When is output highest?
Dr Dabour Hub Academy - figure 1
At 18:00
At night
At 06:00
Around midday
8.
Efficiency rose from 5% to 30%. How many times fewer cells are needed for the same output?
25 times
6 times
60 times
35 times
9.
A solar station has 100000 cells each giving 2.5 W. What is the total power in kW?
2500 kW
250,000 kW
250 kW
40,000 kW
10.
Why are many solar cells connected together?
They need to touch
To reduce output
Each produces only a small voltage
To look nice
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Part of Chapter 9: Energy Resources — see every lesson and quiz in this unit.
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