Basic Types of Energy

If a force is applied to an object but no motion occurs...

• Some work but not as much

• No work

• Work occurs but energy is lost

Is their work being applied to the box?

• No

• Yes

In which of the following cases is work being done on an object?

• Pushing on your car which is stuck in the snow

• Carrying your backpack up the stairs

• Using a crane to hold up a pile of bricks

• Carrying your backpack down the hall

Law of Conservation of Energy states

• Energy cannot be transferred, created or destroyed.

• Energy may change forms and be created or destroyed

• Energy can be transferred but not created nor destroyed.

What is work and energy measured in?

• Watts

• Force

• Joules

• Newtons

Power is the

• the amount of energy transferred

• rate at which energy is transferred

• the rate at which an object moves

• the amount of Newton's applied to an object

If mass of a moving object doubles, kinetic energy..

• Stays the same

• doubles

• Halves

• Tripples

If velocity of an object doubles, kinetic energy...

• Stays the same

• Doubles

• Tripples

• Quadruples

Stored energy is also called..

• Kinetic Energy

• Potential Energy

• Watts

• Work

Force equals

• Mass x Acceleration

• Mass x Gravity x Acceleration

• Energy / time

• Mass x Height