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IGHS Winkels
Physical Science Chapter 3
| Term | Definition |
|---|---|
| Friction | force that opposes motion between two surfaces that are touching each other |
| Static friction | friction between two surfaces that are not moving past each other |
| Sliding friction | force that opposes the motion of two surfaces sliding past each other |
| Rolling friction | friction between a rolling object and the surface it rolls on |
| Air resistance | acts on objects that fall through air |
| Terminal velocity | the highest velocity that a falling object will reach |
| Weight | force of gravity applied to a mass |
| Centripetal Force | force directed toward the center of the circle for an object moving in a circular motion |
| Momentum | property or tendency of a moving object to continue moving |
| Acceleration | m/s/s |
| Mass | kg |
| Force | N |
| Weight | N |
| Momentum | N/s |
| Velocity or Speed | m/s |
| Newton's Second Law of Motion | For any object, the greater the force that's applied to it, the greater its acceleration will be. |
| Law of Gravity | Any two masses exert an attractive force on each other |
| Four Basic Forces in Nature | Gravity The strong nuclear force Electromagnetic Force The weak nuclear force |
| Newton's Third Law of Motion | To every action force there is an equal and opposite reaction force. |
| Law of Conservation of Momentum | Momentum can be transferred between objects. Momentum is not lost or gained in transfer. |