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Kinetc Energy
Energy possesed by moving objects
GPE(gravitational potential energy)
A form of stored energy, like a rock on a cliff face
CPE(chemical potential energy)
Energy stored in the chemical bonds of substances. It is released from fuels when they are burnt.
All substances have this
EPE(elastic potential energy)
Stored energy in things that are compressed, twisted, flexed or wound up in something
Electrical Energy
Energy due to charged particles, most useful form is electrical current which is a flow of electrons from one place to another
Sound Energy
Energy which travels through matter by compression waves. It is the vibrations travelling through the air
Heat Energy
Special form of kinetic energy. It is made because of the movement of the particles in matter
Light Energy
A form of electromagnetic energy and is the most useful form of energy. Travels in waves
Nuclear Energy
Released when the structure of an atom is being changed by splitting or fusing together. It can create large amounts of electrical and heat energy
Law of Conservation
Energy cannot be created or destroyed and when it transfoms the total energy before is equal to the total energy after.
Sources of Energy
Ethanol-liquid fuel that can be made from starch. Added to petrol to make it last longer
Bio-Diesel-can be made from chemicaly treated vegetable oil
Hydrogen-gas fuel that can be made from water but requires alot of electricity and machines
Renweable Energy
Energy that can be reused and the source will never run out
Pendulum
The potential energy is always more than the kinetic energy given
Non-renewable Energy
Energy that cannot be reused and comes from a source that can run out
Simple Machines
All machines are forms of the six simple machines
Lever
Ramp
Pulley
Wheel
Wedge
Screw
Gears
Wheels fitted with teeth
Same size change direction or rotation
Different sizes can magnify speed or force
Force Magnifier
A weak force turning a small gear fast makes a large gear turn slower with a stronger force
Speed Magnifier
A strong force turning a large gear slowly makes a small gear turn faster with a weaker force
Fulcrum
The point where a lever balances
Author
_Dani_
ID
174898
Card Set
Energy
Description
Types of Energy
Updated
10/2/2012, 3:24:17 AM
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