| A | B |
|---|
| speed | how fast or slow something is moving. d/t |
| constant speed | speed that doesn't change. maintains a steady speed |
| acceleration | speed up or slow down |
| force | push or pull |
| newton's first law of motion | an object will continue to move or stay still unless acted on by unbalanced force |
| inertia | tendency of an object to remain in motion or at rest |
| balanced force | forces are in equal and opposite direction |
| unbalanced force | force is greater in one direction, greater exertion of force wins |
| newton's second law of motion | an object acted upon by an unbalanced force will accelerate in the direction of the force. larger force wins |
| friction | force that resists sliding motion between two objects in contact |
| static friction | keeps an object at rest from moving when force is applied |
| sliding friction | when two objects, in contact, slide past each other |
| rolling friction | force that enables an object to move forward or backward as its going around and around |
| air resistance | force that acts on an object as its traveling through the air |
| newton's third law of motion | for every action, there's an equal and opposite reaction |
