Question

Energy Transformations Video
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The Law of Conservation of Energy states that energy cannot be created or destroy. It can only be ________________________ from one form to another. (3 points)

conformed

deformed

transformed

reformed
A car transforms chemical energy into _________________ energy. (3 points)

light

mechanical

potential

radiative
Heat is an example of "wasted energy".(3 points)

True

False
What is the unit used to denote energy? (4 points)

Watt

Newton

Joule

Coulomb
What is an example of chemical energy transforming to mechanical energy?(4 points)

switching on a lightbulb

a girl pedaling a bike

tea kettle heating up on the stove

sunlight charging up solar panels
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Answer 1

1. transformed — energy can only be transformed from one form to another.

2. mechanical — a car converts chemical energy (fuel) into mechanical energy (motion).

3. True — heat produced by inefficiency is usually considered wasted energy.

4. Joule — energy is measured in joules (J).

5. a girl pedaling a bike — chemical energy in muscles is converted into mechanical energy (motion).