Question

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

reformed

deformed

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

light

potential

mechanical

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

True

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

Watt

Coulomb

Joule

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

tea kettle heating up on the stove

sunlight charging up solar panels

switching on a lightbulb

a girl pedaling a bike

Answer 1

1) transformed

2) mechanical

3) True

4) Joule

5) a girl pedaling a bike

Brief reasoning: Energy is transformed between forms. Cars convert chemical (fuel) energy into mechanical work. Heat is commonly considered wasted energy in many processes. The SI unit of energy is the joule. A person pedaling converts chemical energy (food) into mechanical energy.