Work and Mechanical Energy

Work is the force applied over a _______________.

• Mass

• Displacement

• Temperature

• Time

The SI Unit for Work is ____________.

• Joule

• Kilogram

• Metre

• Newton

Calculate the work done in pushing a shopping cart a displacement of 5m with a force of 100N.

• 5 Joules

• 50 Joules

• 500 Joules

• 5000 Joules

Kinetic energy is energy in _______________.

• the sky

• matched

• a box

• motion

What is potential energy?

• moving energy

• stored energy

• renewable energy

• non renewable energy

What are the two(2) types of Potential Energy?

• Motion

• Gravitational

• Elastic

• Sitting

How much potential and kinetic energy does the roller coaster have at 5?

• Kinetic Only

• Little Kinetic, More Potential

• Potential Only

• Little Potential, More Kinetic

At A, How much potential energy is there?

• 0%

• 25%

• 50%

• 100%

What is Mechanical Energy?

• P.E.

• K.E.

• P.E. + K.E.

• P.E. - K.E.

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed from one form to another

• Energy cannot be created or destroyed, it can only transformed from one form to another

• Energy can't be created, destroyed or transformed from one form to another