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Published byRudolph Reed Modified over 6 years ago

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When: By the end of class today Who: Everyone What: Will be able to correctly identify and state in his/her own words Newton’s Three Laws of motion By: Taking notes and looking at examples/demonstrations

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Velocity is speed in a certain direction.

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The rate at which velocity changes over time Speed up, Slow down, or Change direction Positive Acceleration = Speeding Up Negative Acceleration = Slowing Down

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A vector is a measurement that has both a size and a direction. Examples of vectors: Force Velocity

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Newton’s Laws allow us to see and explain how forces and motion are related in the world around us. Sometimes these laws seem simple, but Sir Isaac Newton first defined or identified these laws.

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An object in motion stays in motion, unless acted on by an unbalanced force. OR An object at rest stays at rest, unless acted on by an unbalanced force. This law is sometimes nicknamed the “Law of Inertia”

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Examples:

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Inertia is the tendency of an object to resist a change in its motion. The more massive the object, the more inertia (the harder to change its motion) Examples:

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Acceleration of an object increases with increased force or with decreased mass. What does that mean? If you push or pull harder on an object, then it will accelerate more. OR If you make the object lighter (less mass) and use the same force, then it will accelerate more.

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We can express Newton’s Second Law using a formula: F = ma F is the Force M is the mass A is the acceleration

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If we increase force: F = m a If we decrease mass: F = m a

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Examples:

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For every action force there applied to an object, there is an equal (in size) and opposite (in direction) reaction force.

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Examples:

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