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Course: NOVA Labs > Unit 1
Lesson 5: Energy- Growing appetites, limited resources
- Growing appetites, limited resources quiz
- Energy defined
- Energy defined quiz
- Putting energy to use
- Putting energy to use quiz
- Never-ending supply
- Never-ending supply quiz
- Solar power
- Solar power quiz
- Wind power
- Wind power quiz
- Solving the storage problem
- Solving the storage problem quiz
- Toward a smarter grid
- Toward a smarter grid quiz
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Putting energy to use
Society has been revolutionized by our ability to convert energy into different, more useful forms. As fossil fuels become harder to find, scientists look for new energy sources to power our lives.
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- Is it possible to convert thermal energy directly to electrical energy, instead of using turbines and kinetic energy as an intermediate step?(10 votes)
- Yes, for example with the thermoelectric effect: https://en.wikipedia.org/wiki/Thermoelectric_effect
or there's pyroelectricity, which is a current produced in a crystal when it changes temperature: https://en.wikipedia.org/wiki/Pyroelectricity(6 votes)
- At2:07, what does the picture show?
is it a solar panel?(1 vote)- Yes that is a Concentrated solar power system, "that generates solar power by using mirrors or lenses to concentrate a large area of sunlight onto a receiver." - Wikipedia(1 vote)