Work and Energy

The equation for work is

• work = power x mass

• work = power / time

• work = force x distance

• work = distance x time

_______________ is done when a force acts on an object and the object moves in the direction of the force.

• Work

• Kinetic energy

• Watt

• Joule

The unit for work (aka Newton-meter)

• Watt

• Power

• Work

• Joule

The property of an object or system that allows it to do work is ________________.

• Work

• Energy

• Power

• Distance

How much work is being done with 200 N of force over 426 meters?

• 85,200 J
• 45,620 J
• 90,480 J
• 62,329 J

The energy of movement is...? 

• Kinetic
• Potential

Energy that is stored is called...

• Kinetic
• Potential 

When energy moves from one form to another it is said to be _________________

• Transformed
• Eliminated
• Lost.
• Created 

When you rub your hands together on a cold day, you use friction to convert

• Mechanical energy into thermal energy
• Thermal energy into nuclear energy
• Nuclear energy into electrical energy.
• Electrical energy into radiant energy

Which of the following has kinetic energy?

• a rock poised for a fall

• an archer's bow that is drawn back

• a rolling bowling ball

• A spring that has been compressed