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21 terms

Danielle Heat/Electricity/Magnets

STUDY
PLAY
Energy
the ability to chause change or do work
Thermal Energy
energy caused by moving particiles in matter
Heat
the transfer of termal energy from one substance to another
Temperature
a measure of the average amount of motion of the particles in matter - measured using a thermometer
Conduction
transfer of heat energy by one thing toughing another ex. metal spoon in hot water heats up
Conductors
materials that allow heat to move through them easily ex. metals, water
Insulators
materials that limit the amount of heat that passes through them ex. wood, plastic
Static Electricty
when positive and negative charges between two objects are unbalances ex. sparks fly when you walk on carpet then touch metal object - clothing cling to each other in dryer
Opposite Charges
attarch each other
Same Charges
repel each other (push away from)
Electric Current
electric charges in motion travel quickly and invisibly
Electric Circuit
the path that current flows must be closed (no breaks) for current to flow
Insulators
material that electrical charges CANNOT travel through easily ex. plastic, rubber, glass, wood
Condctors
material that electric charges CAN travel through easily. ex most metals
Series Circuits
electric current travels in one single path
Parrallel Circuits
electric current has two or more paths in can follow
Magnetism
the pushing or pulling force that exists when magnetic material is near
magnetic Field
an invisible field around a magner - Earth is surrounded by a huge magnetic field
Magnets
attracts things that are made of iron, steel, and other metals - have two poles (North and South) with opposite charges
Unlike Poles
attract each other
Like Poles
repel each other