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29 Cards in this Set
- Front
- Back
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Fossil fuels |
Fuels that were made from living matter a very long time ago |
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Renewable energy |
Energy that cannot he used up (exhausted)non |
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Non-renewable energy |
Energy that will be used up eventually |
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Fossil fuels |
Fuels that were made from living matter a very long time ago |
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Global warming |
Gradual increase in Earth’s temperature because of gases such as carbon dioxide released when fossil fuels are burnt, trap radiation within the atmosphere |
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Potential energy |
Energy stored in an object or system |
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Elastic potential energy |
Stored in a stretched or compressed object |
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Gravitational potential energy |
Potential energy that is stored in an object because of its position above the Earth |
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Chemical potential energy |
Energy stored in the particles of substances |
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Joule (J) |
Unit used to measure energy |
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At rest |
Not moving |
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Kinetic energy |
Energy that an object had because it is moving |
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Energy system |
Different parts that work together to store, use or give out energy, so that a specific task can be done |
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Energy transfer |
Movement of energy from one object to another or the change of energy from one form to another |
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Thermal energy |
Energy produced by heat |
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Temperature |
How hot or cold an object is |
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Conservation of energy |
The same amount of energy will be present at the end of a reaction or process, and there was at the beginning |
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Heat |
Energy that an object has because of the movement of the particles that make up the object |
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Conductors |
Substances that transfer heat energy easily |
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Insulators |
Substances that do not transfer heat energy easily |
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Variables |
Factors that can change are observable and measurable |
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Fixed variable |
Variable that is kept constant (the same) every time the investigation is conducted |
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Fluids |
Substances that contain particles that can move around freely |
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Convection |
The way that heat energy flows through liquids and gases |
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Convection current |
Circular movement of fluids caused by convection |
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Radiation |
Transfer of heat energy by electromagnetic waves |
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Electromagnetic waves |
Special waves that can carry heat energy |
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Vacuum |
A space where there is no matter |
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Absorption |
Process in which light strikes a surface and disappears, giving its energy to the surface in the form of heat |
