| A | B |
|---|
| measured in newtons | a force |
| force | a push or a pull |
| gravity | a force that opposes motion all of the time |
| friction | opposes motion wieh things touch or rub together |
| energy | the ability to do work |
| work | the application of a force over a distance |
| if an object doesn't move.... | no work has been done |
| positive work | when the motion is in the direction of the force |
| negative work | when the motion is opposite to the direction of the force |
| bat and ball | example of Newton's Third Law of Motion |
| seat belts | example of Newton's First Law of Motion |
| velocity | also known as speed |
| acceleration | a change in velocity or speed |
| inertia | an objects resistance to change motion |
| the smaller the object... | the less inertia it has |
| the larger the object... | the more inertia it has |
| Law of Conservation of Momentum | When a moving object hits another object, some or all of the momentum of the first object is transferred to the object that is hot. |
| kinetic energy | the energy of motion |
| potential energy | the energy of position or condition |
