Question

match each scenario with the energy transformation.
a toaster
mechanical to sound
person running
electrical to thermal
playing a violin
electrical to light and thermal
wind turbine
chemical to mechanical
tanning bed
electrical to sound
alarm clock
chemical to electrical to light
flashlight
mechanical to electrical

Explanation:

• A toaster uses electricity to generate heat (thermal energy), so it's electrical to thermal.
• A person running converts the chemical energy stored in food (through digestion) into mechanical energy for movement.
• Playing a violin involves using mechanical motion (bowing the strings) to produce sound.
• A wind turbine takes mechanical energy from the wind (movement of air) and converts it to electrical energy.
• A tanning bed uses electricity to produce light (and some heat/thermal, but mainly light for tanning).
• An alarm clock (assuming an electric one) takes electrical energy and converts it to sound. A battery - powered alarm clock would first convert chemical (in the battery) to electrical then to sound. But if we assume a standard electric plug - in, it's electrical to sound.
• A flashlight: if battery - powered, it converts chemical energy (in the battery) to electrical energy (to power the bulb) and then to light.

Answer:

• a toaster: electrical to thermal
• person running: chemical to mechanical
• playing a violin: mechanical to sound
• wind turbine: mechanical to electrical
• tanning bed: electrical to light and thermal
• alarm clock: electrical to sound
• flashlight: chemical to electrical to light