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mid year test
question | answer |
---|---|
what is force | strength of energy of physical movement |
what is force measured in | newton meter and newtons |
resultant force | total force acting on an object |
thinking distance | The distance travelled whilst a driver reacts |
braking distance | The distance travelled whilst a vehicle brakes |
stopping distance | Thinking distance + Braking distance |
extension | When an object gets longer |
compression | When an object gets shorter |
tension | A pulling force on both ends of an object |
weight | A force due to gravity Weight = Mass x Gravity W = m x g |
gravity on earth | 9.8N/kg |
pressure | The ratio of force to area Pressure = Force ÷ Area P = F ÷ A |
insulator | Material that does not conduct heat easily |
conductor | Material that does conduct heat easily |