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Published byAubrey Hardy Modified over 8 years ago
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Newton’s Laws
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1. What is Newton’s 1 st Law of Motion? An object at rest will remain at rest and an object in motion will remain in motion unless acted upon by an unbalanced force.
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2. What does this mean? If an object is not moving, it will not move until a force acts on it. If an object IS moving, it will not stop until a force acts on it.
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3. What is inertia? The tendency of an object to resist a change in motion. The more mass, the more inertia!
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4. What is Newton’s 2 nd Law of Motion? Acceleration depends on the net force acting on the object AND on the object’s mass or
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5. What does this mean? Acceleration and force are directly proportional…the greater the force, the greater the acceleration. small acceleration big acceleration Big push Small push
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Acceleration and mass are inversely proportional…the greater the mass, the smaller the acceleration. small mass big mass big acceleration small acceleration
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The forces will be equal when the truck crashes into the car. Which will accelerate faster after the collision? Explain.
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6. What’s Newton’s third law of motion? Action-Reaction For every action, there is an equal and opposite reaction
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Examples: Reaction Action Rocket!
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ActionReaction Rowing!
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Action Reaction Walking
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Action Reaction
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