Forms of Energy and Transformations

A lamp begins with electrical energy when plugged in and turns into _________ energy when the light comes on.

• mechanical

• kinetic

• radiant

• sound

What type of energy transformation occurs when a hawk eats a mouse and then uses that energy to fly?

• chemical to mechanical

• mechanical to chemical

• thermal to mechanical

• mechanical to thermal

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What type of energy transformation happens in hydro-electric power?

• kinetic to potential

• sound to mechanical

• chemical to electrical

• mechanical to electrical

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What type of energy is stored in batteries or food?

• Potential energy

• Thermal energy

• Chemical energy

• Mechanical energy

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The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —

• solar
• light
• thermal
• mechanical

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In energy transformations, "wasted energy" usually takes what form?

• heat
• chemical energy
• light
• sound waves

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On a roller coaster, where is maximum kinetic energy?

• At the bottom of a big hill
• When going around a corner
• When going upside down
• At the top of a big hill

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According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 

• destroyed, destroyed
• created, saved
• created, destroyed
• lost, found

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

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The roller coaster cart has the most gravitational potential energy at position-

• W
• X
• Y
• Z

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