Energy Transformation

Which of the following device transforms electrical to sound energy?

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• 
• 
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What energy transformation happens when you cook food over an electric stove?

• radiant – electrical – mechanical

• electrical – radiant – chemical

• electrical – sound

• electrical – light

Which of the following is a by-product of energy transformation?

• sound

• light

• heat

• electricity

When does a form of energy become useful to us? When it is _________.

• conserved or saved

• stored in chemical energy

• changed into another form

• released into the atmosphere

Is transformation of energy important? Why?

• No, it is a waste of energy.

• Yes, it can help people in many ways.

• Yes, it produces bad effects to the people.

• No, it is useless and harmful.

Complete the energy transformation by supplying the missing energy.

(chemical, mechanical, light, sound, heat, electrical)

A lighted bulb

electrical energy to _________ energy

Complete the energy transformation by supplying the missing energy.

(chemical, mechanical, light, sound, heat, electrical)

Charging a battery

electrical energy to _________ energy

Complete the energy transformation by supplying the missing energy.

(chemical, mechanical, light, sound, heat, electrical)

Buzzer in a quiz bee

mechanical energy to _________ energy

Complete the energy transformation by supplying the missing energy.

(chemical, mechanical, light, sound, heat, electrical)

Rotating electric fan

electrical energy to _________ energy

Complete the energy transformation by supplying the missing energy.

(chemical, mechanical, light, sound, heat, electrical)

Burning firewood in a fireplace

chemical energy to _________ energy