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Environmental Science B – Unit 3:
Perpetual Resources Interim Test (Part
1).
What force ultimately spins a turbine to generate electricity in a concentrated solar power
(CSP) system?
solar radiation particles
wind spinning turbine blades
steam from water boiled by captured solar energy
increasing temperatures causing parts in a turbine to move spontaneously - Correct Ans:
steam from water boiled by captured solar energy
Why was solar power not immediately popular?
It was expensive.
People feared solar power, because they didn't understand how it worked.
No one liked how the solar panels looked.
There were many other better, renewable options. - Correct Ans: It was expensive.
Which choice describes a global factor that has made solar power more attractive as a
source of energy?
Other alternative energy sources are failing.
It's becoming more expensive.
Fewer people care about the environment.
Fossil fuel reserves are becoming depleted. - Correct Ans: Fossil fuel reserves are
becoming depleted.
How do photovoltaic (PV) solar systems generate an electric current?
PVsystems reflect sunlight back into space to create electricity.
When a PVpanel absorbs sunlight, it triggers a chemical reaction that produces gases and
electricity.
