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energy and devices up quiz
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the main source of energy on Earth is the -----
Sun
true or false: most of the wasted energy of the devices is light energy.
false "heat"
the energy is not created and not destroyed but can be changed from one form to another.
law of energy conservation
the wasted energy of the electric mixer is the -----
sound energy
the output energy of the electric mixer is the ----
sound, and kinetic energy
the input energy of the electric mixer is the ----
electric energy
give reasons why mars rover is operated for long time?
because it has solar panels that changes solar energy into electric energy.
what is the energy chain of eating food and running?
solar energy --> chemical energy --> kinetic energy
what happens if the solar panels doesn't get sunlight?
it will not produce electric energy.
what is the form of energy stored in coal?
chemical energy
what is the change of energy that happens in the electric fan?
from electric energy into kinetic energy
what is the source of energy in Mars Rover Curiosity?
solar batteries - solar panels
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