1 / 11

# Acceleration - PowerPoint PPT Presentation

Acceleration. Chapter 2 Section 2. Acceleration. Acceleration – The quantity that describes the rate of change of velocity in a given time interval. Average Acceleration – The average change in velocity divided by the change in time. Acceleration Equation. Acceleration Units.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about 'Acceleration' - posy

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

### Acceleration

Chapter 2 Section 2

• Acceleration – The quantity that describes the rate of change of velocity in a given time interval.

• Average Acceleration – The average change in velocity divided by the change in time.

• The SI units for acceleration “m/s²”

• Acceleration = velocity/time = m/s/s = m/s²

• Acceleration is a vector quantity

• Has both magnitude and direction

• Since acceleration is a vector, it can have a positive or negative value.

• If acceleration and velocity are in the same direction, the object speeds up.

• If the acceleration and velocity are in opposite directions, the object slows downs.

• The slope and shape of a single graph can describe the motion of an object’s displacement, velocity, and acceleration vs. time.

• Slope = rise / run

• Rise – Dependant Variable (y-axis)

• Run – Independent Variable (x-axis)

• On a Displacement vs. Time graph

• Rise / Run = Slope

• Displacement / Time = Velocity

• The tangent line of a single point on a (d vs. t) graph is equal to the instantaneous velocity at that moment in time.

• On a Velocity vs. Time graph

• Velocity / Time = Acceleration

• The tangent line of a single point on a (v vs. t) graph is equal to the instantaneous acceleration at that moment in time.

d vs. t

V vs. t

a vs. t

Area

Slope

Slope

Area

d vs. t

Slope = Velocity

V vs. t

Slope = Acceleration

a vs. t

Area = Velocity

V vs. t

Area = Displacement

=>

=>

=>

displacement

vs.

time

velocity

vs.

time

acceleration

vs.

time

d

v

a

t

t

t

displacement

vs.

time

velocity

vs.

time

acceleration

vs.

time

d

v

a

t

t

t