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Forces&Motion 5-2
5-2 Energy Conversions
Question | Answer |
---|---|
What is an energy conversion? | A change from one form of energy to another. |
How is elastic potential energy stored? | It can be stored by stretching a rubber band |
How is elastic potential energy released? | It is released when the rubber band goes back to its original shape. |
Where does the energy that plants use to grow come from? | From the sun, light energy is converted into chemical energy |
What are two things that machines can do to force that is put into them? | Change the size or direction of the input force |
How does your body get the energy that it needs? | By using the food you eat to convert chemical energy into kinetic energy. |
What is the role of machines in energy conversions? | They convert energy into a more useful form. |