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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 |