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4th Grade Science
Week of March 3 Vocabulary
Term | Definition |
---|---|
force | A push that moves an object away or a pull that moves an object nearer |
friction | a force that slows or stops motion between two surfaces that are touching |
gravity | the force that pulls bodies or objects toward other bodies or object |
motion | a change in an object's position as compared to objects around it. |
speed | a measure of the distances an object travels in a certain amount of time |
unbalanced force | any push or pull where the net zero is not zero, net force ≠ 0 |
balanced force | pushes or pulls that exerts equal force in opposite directions, net force = 0 |
drag | force caused by the friction of air molecules |