| A | B |
|---|
| newton's first law | an object at rest or in motion will stay at rest or in motion until an unbalance force acts upon it. |
| formula for newton's second law | F=ma |
| newton's third law | for every action there is an equal and opposite reaction. |
| newton's second law (concept) | the more mass an object has the more force is needed for it to accelerate |
| terminal velocity | highest velocity that will be reached by a falling object. |
| formula for momentum | p = m x v |
| unit for momentum | kgm/s |
| Law of conservation of momentum | the momentum before a collision equals the momentum after a collision. |
| air resistance | friction between a solid object and air |
| Newton | amount of force it takes to move 1 kg of |
| gravity | the force that pulls an object to the center of the earth |
| force | any push or pull on an object |
| balanced force | forces that are equal in size and opposite in direction |
| tug of war with dog, nobody moving | example of balanced force |
| unbalanced force | force that cause a change in motion |
| seniors vs. freshman in tug of war | example of unbalanced force |
| inertia | tendency of an object to resist any change in its motion |
| net force | also known as unbalanced force |
| wearing no seat belt and flying out of a car | example of newton's first law |
| a large elephant is harder to push than a baby elephant | example of newton's second law |
| throwing a ball on a skateboard and going backwards | example of newton's third law |
