| Question |
Answer |
| force |
A push or a pull |
| Friction |
A force that oposes motion between two surfaces producing thermal energy |
| Gravity |
The force of attraction between objects that is due to their masses. It can affect the position of an object or the direction of its motion. |
| Inertia |
The tendency of all objects to resist any change |
| Motion |
When an object changes position in relation to reference point over a period of time. |
| Net force |
The force that results from combining all the forces exerted on an object |
| Newton |
term or unit used to express force. |
| Speed |
he rate at which an object moves; need distance and time to calculate |
| Velocity |
The speed of an object in a particular direction. |
| Work |
When a force causes an object to move in the direction of the force |
| Relative motion |
When you compare one objects motion to another objects motion |
| Balanced force |
A net force of zero |
| Unbalanced force |
When the net force on an object isn't zero. It produces a change in motion. |
| Decelerate |
a decrease in speed |
| Centripetal force |
acceleration that occurs in circular motion. |
| Momentum |
An object in motion has a hard time slowing down once its in motion. |
| reference point |
A fixed point on Earth that can be used to describe a distance or direction. |
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