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science notes 10/13
study guide
| Term | Definition |
|---|---|
| shadow | an area pf partial darkness where light has been blocked by asn object. |
| kinetic energy | energy due to motion. |
| noncontact force | a force that acts at a distance. |
| average speed | the measure of how fast an object is moving during a certaun amount of time. |
| contact force | a force that requires two pieces of matter to touch. |
| balanced | describes equal forces that combine to act on an object in opposite directions. |
| gravity | a force of attraction between any two object. |
| force | a push or pull that on a object |
| acceleration | the rate at which the speed or direction of motion of an object changes over time |
| potential energy | energy that is not causing any changes now but could cause changes in the future. |
| intertia | the tendency of an object to resist any change in motion |
| energy | ability to do work or cause change |