Motion Unit Miss McDonald Science 8

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Presentation transcript:

Motion Unit Miss McDonald Science 8 Acceleration Motion Unit Miss McDonald Science 8

What is acceleration? change in velocity time The of an object over a period of change in velocity time

What is the formula for acceleration? change in velocity time

Acceleration = change in velocity/ time Example What is the acceleration of a car that can go from 0 mph to 60 mph in 5 seconds? Acceleration = change in velocity/ time A = 60 – 0/ 5 A= 12 mph/s

Acceleration = change in velocity/ time Practice A roller coaster is traveling with a speed of 15 m/s at the top of a hill. Two seconds later as it travels down the hill it has a velocity of 25 m/s. What is the acceleration? Acceleration = change in velocity/ time A = 25 – 15/ 2 A= 5 m/s/s