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13 Cards in this Set
- Front
- Back
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Convection |
An energy transfer due to motion. |
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Renewable energy |
An energy source that is naturally replenished in a short amount of time. |
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Molecule |
The smallest particle of a material that has all the chemical properties of that material. Usually has two or more atoms. |
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Elements |
Substances that have only one kind of atom. |
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Atoms |
The smallest particle of a chemical element that retains its chemical properties. |
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Chemical reactions |
Molecules break apart and atoms are rearranged into new molecules. |
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Nuclear reactions |
The atoms themselves not the molecules break up. Releases much more energy. Happens in the center of the atom, where ther is a tiny dense ball of matter called the nucleus. |
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Nucleus |
Consisits of two types of particles: protons and neutrons. Number of protons determines the kind of element. All hydrogen atoms have one proton in the nucleus helim atoms have two protons. |
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Uranium |
Can be used as a efficient fuel. Size of a tenis ball. (Pound of uranium used in nuclear plants) 92 protons. 238 particules in its nucleus. |
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Nuclear fission |
The splitting of the nucleus is called... |
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Reservoir |
A natural or human made body of water that collects and stores water for a region. |
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Hydrostatic pressure |
The pressure exerted on a portion of fluid as a result of the weight of the fluid above it. |
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Resistance |
Opposition to movement. |
