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# Difference between acceleration and velocity[1]

## by tolstykh on Sep 27, 2010

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## Difference between acceleration and velocity[1]Presentation Transcript

• Difference Between Acceleration and Velocity
By: Connie Appiah
• Acceleration
Acceleration is the change in an object’s velocity over time.
The equation for acceleration is:
To be more specific it is:
• Positive Acceleration
If your velocity is changing in the negative direction, and the velocity is negative. ( -,-=+)
If your velocity is changing in the positive direction, and the velocity is positive. (+,+=+)3
• Negative Acceleration
Increases speed when moving in negative direction.
Decreases its speed when moving in a positive direction
Moves in a direction opposite of the positive direction.
• Why Speed is not Acceleration
Speed is a SCALOR (magnitude)
Acceleration is VECTOR (magnitude and direction)
Speed is the distance traveled in one unit.
Acceleration is change in velocity over time.
• Why Velocity is Not Acceleration
Velocity? Velocity is speed with a direction. So it has the same formula for speed which is:
Change in distance/ change in time but with DIRECTION.
Acceleration is the change in velocity in time.
While velocity is change in DISTANCE over time acceleration is change in VELOCITYover time.