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31 Cards in this Set
- Front
- Back
Energy
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the ability to cause a change in matter
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matter
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anything that takes up space and has mass
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The Law of the conservation of Energy
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says that energy can change forms but it can never be made or destroyed
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2 kinds of energy
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kinetic and potential
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Kinetic Energy
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the energy of motion - the more you have the faster an object will move
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potential energy
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the amount of energy an object has because of its conditon or position.
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Energy transfer
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When energy moves from one place or object to another, such as when a person lands on a trampoline.
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solar energy
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energy that comes from the sun
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light
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visible radiation
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chemical energy
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stored energy that can be released by a chemical reaction
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mechanical energy
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the combination of all the potential and kinetic energy that something has
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electric energy
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energy that comes from an electric current
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heat
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the transfer of thermal energy between objects with different temperatures
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systems
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a set of parts acting together as a whole
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conduction
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direct transfer of thermal energy from one object to another
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convection
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the transfer of thermal energy by the movement of a gas or liquid
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radiation
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the transfer of energy by electromagnetic waves moving through space or matter
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reflection
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heat or light bouncing off an object
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fossil
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remains of past life found in sedimentary rock
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resource
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a material that can satisfy a need
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nonrenewable resource
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a resource that cannot be replaced in a reasonable amount of time
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conservation
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saving something so that it doesnt get used up.
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renewable resource
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a resource that can be replaced in a reasonable amount of time
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pollution
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anything that dirties or harms the environment
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what makes temperatures rise
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the particlels move faster
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insulator
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slows the movement of thermal energy. In cold weather, we wear clothing such as wool or fleece.
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good conductors
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most metals especially copper.
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bad conductors
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wood and plastic
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some non renewable energy sources
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coal, oil and natural gas
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some renewable energy sources
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wind and solar energy and the hydroelectric power
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acid rain
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when fossil fuels are burned and gases combine with rain
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