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physics
Term | Definition |
---|---|
current | flow of charge |
resistant | how difficult it is for electricity to flow through |
repel | like charges do this |
attract | opposites attract |
insulator | a substance that does not allow electricity to flow through |
conductor | a substance that lets electricity flow through |
static electricity | to do with electric charges that are not moving |
scalar | size or magnitude |
vector | a quantity which has magnitude such as force |
magnitude | the size of something |
force | is a push or a pull measured in newtons |
what is the 1st newton law? | if the forces are balanced, nothing changes |
what affects the thinking distance? | tiredness, too much alcohol, too much drugs, poor visibility |
what affects the braking distance? | icy roads, worn out tyres, wet roads, driving too fast |
work | is the amount of energy transferred when a force moves |
what are the three ingredients to work? | force displacement cause |