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ps unit 1 N1L
newtons first lawn, inertia, and motions
| Term | Definition |
|---|---|
| distance | how far you have traveled between two position. it always positive. it is a scalar quantity |
| displacement | change in positions. |
| scalar | quantity that only requires magnitude ( how big ) |
| vector | quantity that requires both magnitude ( how big ) and directions |
| speed | how fast something is moving. it is equal to distance divided by time. it is scalar quantity |
| velocity | rate at which position changes. it is equal to displacement divided by time. it is a vector. |
| forces | strength or energy as an attribute of physical action or movement. |