acceleration nl 2.2. acceleration : is a change in velocity. – because acceleration is a change in...
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Acceleration
NL 2.2
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• Acceleration: is a change in velocity.–Because acceleration is a change in velocity
and not speed you must also indicate direction
• You go faster if acceleration and velocity point in the same direction
• You slow down or decelerate if acceleration and velocity point in opposite directions
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• When you accelerate or decelerate you change your velocity by a specific amount over a specific amount of time.
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• Calculating Acceleration:
• Units: meters/ second/ second OR m/s2
Acceleration= Change in Velocity Time
Acc.= Final Velocity – Initial Velocity Time
OR
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Acceleration Brain Pop
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Newton’s Second Law
• Newton’s Second Law states that the strength of a force is equal to the amount of mass involved multiplied by any acceleration applied to it.
Or to make it more simple…
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Newton’s Second Law
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• http://www.youtube.com/watch?v=iwP4heWDhvw
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Demonstration 1:
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• You are predicting how far you think the dixie cup will move when hit by either the heavier container or the lighter container.
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Demonstration 2
• For this demo you will have a golf ball, a ping pong ball, and a straw.
• You will blow through the straw to move the golf ball and ping pong ball.
• You will predict whether it will require more force to move the ping pong ball or the golf ball
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Demonstration 2: