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gravity vocab
science vocab for test
| Term | Definition |
|---|---|
| Mass | Amount of matter in a object |
| weight | the amount of gravitational force exerted on an object |
| gravity | the attraction between any two objects that have mass |
| free fall | the motion of falling object when the only force acting on it is gravity |
| terminal velocity | the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity |
| acceleration | the change in velocity in a give time interval |
| volume | the amount of space a object takes up |
| air resistance | the fluid friction experienced by objects falling through the air |
| friction | a force that opposes the motion of objects that touch as they move past each other |