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4th Grade Sci U 04
Investigating Force and Motion
Term | Definition |
---|---|
Force | something that causes a change in the motion of an object. |
Motion | a change in position of an object over time. |
Gravity | a force which tries to pull two objects toward each other. |
Friction | is a force that holds back the movement of a sliding object. |
Magnetism | a force that can attract (pull closer) or repel (push away) objects that have a magnetic material like iron inside them. |