Acceleration

1
Acceleration

• Motion Unit
• Miss McDonald
• Science 8

2
What is acceleration?

• The of an object
• over a period of

change in velocity
time
3
What is the formula for acceleration?

• Acceleration --------------------------

change in velocity
time
4
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

5
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