Work Energy and Power

What is the equation for kinetic energy?

KE =

• F*d

What is the equation for gravitational potential energy?

PE =

• F*d

What is the equation for work?

W =

• F*d

What is the definition for Kinetic Energy?

• Adds or removes energy from a system; calculated by multiplying force times distance.

• Energy of motion

• Unit for energy and work

• Energy of position

What is the definition for Potential Energy?

• Adds or removes energy from a system; calculated by multiplying force times distance.

• Energy of motion

• Unit for energy and work

• Energy of position

What is a Joule?

• Adds or removes energy from a system; calculated by multiplying force times distance.

• Energy of motion

• Unit for energy and work

• Energy of position

Which of the following fall under the umbrella of Mechanical Energy?

• Kinetic Energy

• Potential Energy

• Chemical Energy

• Thermal Energy

How much gravitational potential energy does a 100kg (220lb.) skydiver have if they jump from 4000 meters?

• 3920000 J

• 294 J

• 180000 J

• 1225 J

A 6kg cat misjudges a jump and falls 5 meters. How much gravitational potential energy does the cat have? (The cat is fine by the way.)

• 294 J

• 180000 J

• 1225 J

• 3920000 J

What is the kinetic energy of a 1,600kg Mustang travelling at 15 m/s (33mph)

• 180000 J

• 294 J

• 1225 J

• 3920000 J