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chapter 9 IPC vocab cards
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30
Science
8th Grade
02/15/2012

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Term
Energy
Definition
The ability to do work
Term
Kinetic Energy
Definition
The energy an object has due to motion
Term
Potential Energy
Definition
The energy an object has due to its position, and shape.
Term
Mechanical energy
Definition
Amount of work that can be done because of the object's potential and kinetic energy.
Term
Energy Conversion
Definition
A change of energy from one form of energy to the other
Term
Friction
Definition
A force that opposes motion between surfaces that are in contact
Term
Law of Conservation of Energy
Definition
That law cannot be created or destroyed, BUT can be converted from one form to the other.
Term
Non-renewable resource
Definition
A resource that regenerates at a much slower rate than the rate at which it is consumed.
Term
Fossil Fuels
Definition
Fuel made by burning remains of dead animals and plants
Term
Renewable resource
Definition
A resource that can be replaced at the same rate at which it is consumed
Term
Energy conversion
Definition
When one type of energy converts to the other
Term
Energy resource
Definition
A naturual resource that can be converted into other forms of energy in order to do useful work
Term
GPE depends on..?
Definition
This depends on weight and height
Term
Kinetic Energy depends on
Definition
This depends on Speed on Mass
Term
Gravitational Potential Energy
Definition
This is equal to the amount of work done on an object to lift it to a certain height.
Term
Thermal Energy
Definition
All of the kinetic energy due to random motion of the particles that make up an object.
Term
Chemical Energy
Definition
The energy of a compound that changes as its atoms are rearranged.
Term
Electrical Energy
Definition
The energy of moving,electrons
Term
Elastic Potential Energy
Definition
Energy stored in stretched elastic
Term
Closed System
Definition
A group of objects that transfer energy only to each other.
Term
Perpetual motion
Definition
The idea of putting a certain amount of energy in and getting the exact same amount of energy out, but impossible.
Term
Energy Efficiency
Definition
A comparison of the amount of energy before a conversion with the amount of useful energy after a conversion.
Term
Electric Generators
Definition
These convert the chemical energy in fossil fuels into electrical energy.
Term
Nuclear Fission
Definition
When the nucleus of a uranium atom is split into two smaller nuclei, which releases nuclear energy.
Term
Nuclear Energy
Definition
Energy generated from very small matter
Term
Wind Energy
Definition
The change of the kinetic energy of the air into electrical energy by turning a generator.
Term
Solar Energy
Definition
Sunlight changed into electrical energy through solar cells.
Term
Geothermal Energy
Definition
Thermal energy caused by the heating of Earth’s crust
Term
Biomass
Definition
Organic matter, such as plants, wood, and waste, that can be burned to release energy.
Term
The sun
Definition
Biggest resource of energy on the earth
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