Here are the vocabulary words matched with their corresponding definitions:
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Friction: This is a force which resists all motion.
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Gravity: This is an attractive non-contact force between any two objects due to mass.
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Newton's third law: For every action, there is an equal and opposite reaction.
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Newton: This is the SI (metric) unit of force.
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Newton's first law: A law of motion that states that an object at rest stays at rest and one in motion stays in motion.
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Newton's second law: This says the acceleration of an object increases by the force applied to it, and decreases based on its mass.
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Force: This is equal to mass x acceleration in the second law of motion. It is also the ability to apply a change in velocity on a given object. Any push or pull on an object.
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Unbalanced forces: This is what causes acceleration. Two forces acting opposite each other.