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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
Newton's first lawAn object in motion (or at rest) will tend to stay in motion (or at rest) until it is acted upon by an outside force.
InertiaThe tendency of an object to resist changes in its velocity.
FrictionA force that opposes motion, resulting from the contact of two surfaces.
Static FrictionFriction that opposes the initiation of motion.
Newton's Second lawWhen an object is acted on by one or more outside forces, the total force is equal to the mass of the object times the resulting acceleration.
Kinetic FrictionFriction that opposes motion once the motion has already started.
Newton's third lawFor every action, there is an equal and opposite reaction.