One of these things
is not like the other!
 
 

 

Is the Acceleration
Constant, Increasing or Zero?

Review 

Click on the button and play ... 

The idea for this game and graphic come from a great high school physics teacher named Kelly O'Shea.

 

 

Video Instruction

showmethephysics.com

 

Fill in the Blanks Notes

 

IV. Motion Equations for Problem Solving

 

 

When an object is moving at a constant acceleration we can use the following equations to find motion information

 

 

 

 

 

 

A. Constant Accel. Equations
         (see Reference Table)

 

 

1. Average Velocity

 

 

V = (Vi + Vf)/2

or

V = Δd/Δt

 

 

 

 

 

2. Acceleration:

 

 

a = (Vf - Vi)/t

 

 

Cross multiply & Solve 

 

at = (Vf - Vi)

 

Add Vi to both sides

 

Vf = Vi + at

 

 

3. Displacement:

 

 

V = Δd/Δt

 

 

 

 

 

 

B. Additional Equations

 

 

Take Equation 3 and solve for d

 

 

 

Δd = V Δt

 

 

 

 

 

 

• Substitute Equation 1 into previous equation

 

 

Δd =[(Vi + Vf)/2]Δt 

 

 

 

Since Vf = Vi + at

 

 

 

Δd =[(Vi + (Vi + at)/2]Δt

Gather like terms and solve for d

 

Δd =Vit +1/2at2

 

 

 

Word Problems

 

 

 

Try this at home!

"30 Seconds with Mr. G" - Number 4

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