Energy Review

All of the following are examples demonstrating mechanical energy except -

• a fire roasting marshmallows

• a fan blowing out air

• a girl kicking a ball across the yard

• a boy writing with a pen

A student uses a heat lamp in a terrarium to create a warm environment for her pet lizard. What types of energy are present when the heat lamp is on?

• light, sound, mechanical

• electrical, light, thermal

• sound, thermal, electrical

• thermal, light, sound

Three different objects that produce the same source of energy are shown. What is the main energy these objects produce?

• mechanical energy

• electrical energy

• thermal energy

• sound energy

A student uses a hot plate to boil water in the science lab. Which of these objects uses the same source of energy as the hot plate?

• a lamp using light energy

• a phone using sound energy

• a teapot using thermal energy

• a guitar using mechanical energy

An electric dishwasher uses thermal energy to clean and sanitize dishes by heating water to high temperatures. Which other household appliance is used to produce thermal energy?

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Which two forms of energy are most commonly used to cook food in an oven?

• light and mechanical

• electrical and sound

• thermal and sound

• electrical and thermal

Energy...

• is the ability to do work or cause a change

• is all the movement in the universe

• cannot be created or destroyed

• all of the above

Matter... 

• all the material "stuff" in the universe

• is anything that has mass and takes up space

• cannot be created or destroyed

• all of the above

Energy can be classified into these two categories.

• Potential and kinetic

• Gravitational and elastic

• Light and sound

• Kinetic and movement

What is kinetic energy?

• Thermal energy

• Nuclear energy

• Energy in motion

• Stored energy