| A | B |
|---|
| unit of measurement for forces | Newtons N |
| a force is either one or the other | push or a pull |
| force between two surfaces | friction |
| force caused by graviatational attraction | weight |
| if balanced forces on a moving object | continues moving,same speed&direction |
| if balanced forces on a stationary object | object remains stationary(at rest) |
| force pushing against falling objects | air resistance |
| turning force | a moment |
| device to increase air resistance | parachute |
| formula for calculating moments | force x distance from pivot |
| formula for pressure | force/area |
| footwear for reducing pressure | snow shoes/skis |
| footwear for increasing pressure | ice skates |
| formula for speed | distance/time |
| speed of 100m Olympic spinter | 10m/s |
| increase in pushing force | acceleration |
| designed to increase friction | brakes |
| to balance Mr Mills on end of a seesaw | Mt Dorothy sits nearer to the pivot |
| force excerted by water | upthrust |
| He studied the force of gravity | Sir Isaac Newton |
