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PHYSICS CLASSROOM


Summary
Newton's First Law of Motion states that "An object at rest will remain at rest, or an object in motion will stay in motion at the same speed and in the same direction, until acted on by an unbalanced force (or a non-zero net force)."
Newton's First Law of Motion is also known as the Law of Inertia, where inertia is the tendency of an object to resist changes in its state of motion.
Newton's Second Law of Motion states that "The acceleration of an object produced by a force is directly proportional to the amount of force, and inversely proportional to the mass of the object, or Force = Mass x Acceleration."
Newton's Third Law of Motion states that "For every action, there is an equal and opposite reaction."
If you're ready to test yourself on whether you have understood Newton's Three Laws of Motion well, click on the "Quiz" button below.
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