Energy Transformation

Front

What is the best example of a machine that converts electrical energy into kinetic energy and sound energy? Options: an electric toothbrush, a toaster, a flashlight, an iron

Back

an electric toothbrush

Front

What best describes the energy conversion that occurs when you turn on a hair dryer?

Back

electric to kinetic to thermal and sound

Front

What best describes the energy conversion that takes place in a microwave oven? Options: electrical to light to thermal, chemical to thermal to light, electrical to thermal to sound, nuclear to thermal to chemical

Back

electrical to light to thermal

Front

Turning on a lamp is an example of energy transformation from electrical to 3 forms of energy. Which of these is NOT created by the lamp? Options: radiant, light, heat, chemical

Back

chemical

Front

Which energy transfer occurs when food is digested? Options: chemical to mechanical, radiant to nuclear, mechanical to potential, thermal to chemical

Back

chemical to mechanical

Front

In energy transformations, "wasted energy" usually takes what form? Options: heat, chemical energy, light, sound waves

Back

heat

Front

What kind of energy transformation takes place in this system?

Back

chemical to electrical to light

Front

Example of radiant energy to thermal energy transformation?

Back

a greenhouse

Front

During most energy transformations and transfers, wasted energy takes the form of __.

Back

heat

Front

What is the best example of a device that converts electrical energy to thermal energy? Options: a toaster, a clock radio, a flashlight, an electric toothbrush

Back

a toaster