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Force & Motion
Term | Definition |
---|---|
Tension Force | A pulling force applied to an object that can make an object stretch. |
Elastic Force | A force exerted by a material when it is stretched or compressed. |
Air Resistance | The force that opposes the motion of an object through a gas. |
Friction | A force that opposes the motion of an object in contact with a surface. |
Gravity | The force of attraction among all objects. |
Non-Contact Force | A force exerted when objects are not touching. |
Contact Force | A force that is exerted only when objects are touching. |
Force | A push or a pull exerted by one object on another, possibly causing a change in motion. |
Acceleration | A change in the velocity of an object over time. |
Velocity | A description of an object's speed and direction. |
Motion | A change in an object's position compared to fixed objects around it. |
Unbalanced Force | Forces that do not cancel each other out and that causes an object to change its motion. |
Balanced Force | Forces that act together on an object without changing its motion. |
Speed | How fast an object's position changes with time at any given moment. |
Net Force | The combination of all forces acting on an object. |