Energy Quiz Review CP Physics

What is the definition of work?

• The product of the force on an object and the distance it moves.

• The product of the mass and the height of an object.

• The product of the mass and speed of an object.

What is the formula for Work?

• W = mgh

• W = Fxd

What is the unit for Work?

• Watt

• Works

• Joules

What is the law of conservation of energy?

• Energy cannot be created or destroyed, but it can be changed.

• Energy can be created out of thin air.

• Energy can be destroyed and can never be made again.

At the very top of a mountain, a skier has 1000 J of potential energy. How much kinetic energy does the skier have? (Hint: There are 1000J of energy total in this system)

• 1000J

• 0 J

• 500 J

Half way down a mountain, a skier has 500 J of potential energy. How much kinetic energy does the skier have? (Hint: There are 1000J of energy total in this system)

• 1000J

• 0 J

• 500 J

At the bottom of a mountain, a skier has 0 J of potential energy. How much kinetic energy does the skier have? (Hint: There are 1000J of energy total in this system)

• 1000J

• 0 J

• 500 J

A rubber band that is pulled and ready to shoot is an example of...

• Kinetic Energy

• Rubber Band Energy

• Potential Energy

Potential Energy is stored energy based on an object's...

• Speed

• Height

• Visibility

The ratio of the output force to the input force of a simple machine is known as...

• Mechanical Advantage

• Superhuman Advantage

• Work