Energy Converters Quiz

Bob's mom baked some cookies and cupcakes. She warns Bob about getting near the oven while she is baking because the oven door is warm. The warmth of the oven door is evidence of ___________________ energy.

• light

• sound

• motion

• thermal

The sun is a source that provides multiple forms of energy. What form of energy is visible from the sun?

• light

• sound

• motion

• thermal

There are many electrical devices in a home that have different types of energy forms as an output. One way energy can change from one form to another is through _____________ .

• output energy

• a source

• a converter

• input energy

If an object does not have an output energy form that is different from its input energy form, then the object is NOT ________________ .

• a generator

• a device

• a source

• an energy converter

In the simple electrical system that we built in class, the motor was the converter. The function of an energy converter is to convert one form of energy into _____________ .

• other forms of energy

• ONLY thermal energy

• ONLY sound energy

• ONLY light energy

In a typical home, what are examples of electrical energy converters? Choose three answers.

• oven

• mirror

• bathtub

• tv

• lamp

Energy ______________ just appears or disappears. It comes from a source.

• always

• never

• sometimes

• rarely

____________ converts electrical energy to other energy forms.

• Sources of energy

• Energy

• Electrical devices

• All of the above

What does it mean for a device to be energy efficient? Choose 2 answers.

• They use less electrical energy than other devices to produce the same amount of the output energy.

• They use the same electrical energy than other devices to produce the same amount of the output energy.

• They use more electrical energy than other devices to produce the same amount of the output energy.

• They generate less thermal energy than non-energy efficient devices.

• They use more electrical energy than other devices to produce less of the output energy.

What are different forms of energy?

• light

• sound

• motion

• all of the above