Newtons 3 Laws of Motion

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What are Newton's Three Laws of Motion?

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1. First Law: An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force. 2. Second Law: The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma). 3. Third Law: For every action, there is an equal and opposite reaction.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

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What is Newton's Second Law of Motion?

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The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

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What is Newton's Third Law of Motion?

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For every action, there is an equal and opposite reaction.

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What is the definition of net force?

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The net force is the vector sum of all the forces acting on an object.

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What does it mean for forces to be balanced?

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Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

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What does it mean for forces to be unbalanced?

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Unbalanced forces are not equal and can cause an object to start moving, stop moving, or change direction.

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Who formulated the Laws of Motion?

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Sir Isaac Newton.

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What is an example of Newton's Third Law of Motion?

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When you jump off a small boat, you push the boat backward as you move forward.

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What is inertia?

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Inertia is the tendency of an object to resist changes in its state of motion.