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15 Cards in this Set
- Front
- Back
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Name 4 types of the main energy |
- sound - light - kinetic - electrical |
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What is potential energy? |
Energy that is stored (not yet used) |
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What are the 3 types of potential energy? |
- gravitational - chemical - elastic |
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What is Biomass energy? |
Energy which is stored in plants |
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How is ethanol made? |
made by fermenting the sugar from plants (photosynthesis) |
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What is ethanol? |
- pure alcohol - can be used as a biofuel (made from living things) |
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What is nuclear energy? |
involves reaction of nuclei atoms |
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Difference between "Fusion" and "Fission" |
Fission: a nucleus is split apart Fusion: 2 nuclei are smashed together (2H > He) |
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What do chloroplasts do? |
contains chlorophyll which make plants green |
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Why is glucose from photosynthesis in chloroplasts green? |
chlorophyll is stored in bonds of glucose atoms |
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What is the difference between blue and red wavelengths? |
red has much longer wavelength because it has a low frequency |
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What is amplitude? |
strength (in sound) |
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What is the energy transformation in a car? |
E (means energy) Echemical potential > Ekinetic > 1. Esound 2. Eheat |
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Energy conversion of sun's energy into starch and sugars |
Elight > Echemical |
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Energy conversion of sun's energy into electricity |
Elight > Echemical |
