Energy Transformations

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What is the law of conservation of energy

energy cannot be created or destroyed but it can be transformed

A basketball passing through the hoop

kinetic energy

A person climbing a ladder

kinetic energy

Blowing wind

kinetic energy

A dry cell of a battery

potential energy

A piece of celery

potential energy

A rock at the edge of a cliff

potential energy

An acorn hanging from an oak tree

potential energy

Gasoline

potential energy

What % of energy can be transformed when an energy transformation from potential to kinetic occurs

Less than 100

Which of the following choices are all forms of energy?

Light, electrical, mechanical, and heat

Chemical to heat

Match

Total amount of kinetic and potential energy in a system

Mechanical energy

A glass of milk

PE

Mechanical to sound

Speaker

The ability to cause change

Energy

What happens to energy as it is converted from one form to another?

All energy is transferred

Which of the following describes the energy transformation needed to light up the light bulb on the generator

Chemical potential to electric to mechanical to light

A tape player with batteries

Chemical to electric to motion to sound

An automobile (3)

Chemical to thermal to mechanical

A hot air ballon (4)

Chemical to thermal to motion to gps

eletric fan

Electric to Motion

A lamp

Electric to light

An iron

Electric to thermal

Electrical to mechanical

Fan

moving a skateboard

Ke

When a tennis ball bounces on the floor, which of the following best describes what happens to the height of the rebound bounce of the ball?

The ball comes back to some fraction of the height it was dropped from originally

Conduction

The direct transfer of heat from one substance to another substance that it is touching.

Which of the following is the best definition for potential energy

The energy is stored

Which of the following is the best definition for kinetic energy

The energy of movement

Why does an object slow down when you stop pushing it?

There are forces working opposite to the movement to slow it down

Where does most radiation come from

The sun, visible light

Convection

The transfer of heat by the movement of a fluid

Radiation

The transfer of heat energy ny electromagnetic radiation

What are energy transformations

When energy changes from one form to another

When is the energy of the rubber band inside the can completely stored energy

When the rubber band is wound and the object is stopped

Transfer of energy through motion

Work


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