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These flashcards cover key vocabulary terms related to the concepts of gravity and friction.
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Force
A push or a pull on an object.
Contact Force
Push or pull on one object by another object.
Noncontact Force
Applied without touching.
Electric Force
Makes hair stand on end.
Gravity
Keeps you from floating away.
Magnetic Force
Makes a compass needle point north.
Kilogram
Unit of mass.
Newton
Unit of force or weight.
Friction
Resists the motion of two surfaces that are touching.
Lubricant
Reduces friction.