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Forces and Motion
| Term | Definition |
|---|---|
| Gravity | the force that attracts a body toward the center of the earth, or toward any other physical body having mass. |
| Mass | The property of a body that is a measure of its inertia and that is commonly taken as a measure of the amount of material it contains and causes it to have weight in a gravitational field |
| Weight | the force acting on an object due to gravity. |
| Air resistance | |
| Newton's first law- Inertia |