Energy Review

The law of conservation of energy states that

• The energy of a system can dissapear

• It is impossible to make a perpetual motion machine

• Energy cannot change form

• Energy can neither be created or destroyed

Energy stored in gasoline is

• Nuclear

• Chemical

• Mechanical

• Electromagnetic

Which of the following are a type of mechanical energy?

• Thermal

• Nuclear

• Kinetic

• Electric

An ax head is an example of

• lever

• inclined plane

• wedge

• wheel and axle

Wheel and axle example is

• Hammer

• Steering wheel

• jar lid

• pencil

Mechanical energy =

• Potential + Kinetic

• Thermal + Potential

• Kinetic + Friction

• Electric + thermal

The sun's energy comes from

• Nuclear

• Electric

• Electromagnetic

• Chemical

A force moved through a distance is

• force

• acceleration

• motion

• energy

Increased when an object gets warmed

• Thermal

• Kinetic

• Electric

• Nuclear

Which is NOT part of inclined plane family

• wedge

• screw

• ramp

• wheel and axle