Physics MUE5 Review

What is the Formula for Work?

• W = F * d

• W = .5mv^2

• W = mgh

• W = mv/h

What is the expanded formula for W = Change KE

• F *d = mgh

• F * .5mv^2 = mgh

• F * d = .5m(vf - vi)

• F * d = .5m(vf^2 - vi^2)

In the W = Change in KE equation, what do you NEED to calculate for the force of Friction?

• 1. Displacement

  2. Velocity Final

  3. Mass

• 1. Displacement

  2. Velocity initial

  3. Mass

• 1. Displacement

  2. Mass

• Only Mass

If you were to double your original velocity (2V) , what would happen to your displacement according to the W= Change in KE formula?

• Double

• Half

• Quadruple

• 1/4

 

If you were to quadruple your original mass (4M ) , what would happen to your displacement according to the W= Change in KE formula?

• Quadruple

• Double

• Nada aka Nothing

• Half

Looking at the FBD what is the motion of the object?

• Constant Velocity

• Acceleration

• Increasing Velocity

• Decreasing Velocity

Calculate the total amount of work from 0-5 meters.

• 10J

• 17.5 J

• 5/3 J

• 5J

What is the formula for area of a triangle

• b*h

• 2b*h

• b/h

• .5*b*h

What is the formula for area of a square?

• .5b*h

• b/h

• b*h

• 2b/h

In the W = Change in KE equation, what do you NEED to calculate for the Change in velocity?

Givens: Friction Force = 100 N

Displacement = 15N

• Mass

• Mass and Force

• Displacement

• Mass and Displacement