Lesson on Electricity

When electrons flow through wires from a - terminal to a + terminal a/an ___________ is created.

• Flow

• Electromagnet

• Current

• Magnet

The area around an electric charge that experiences the force exerted by the electric charge.

• Electric Field

• Magnetic Field

• Electric Force

• Magnetic Force

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Electric charges that do not move through a current are known as

• Electricity

• Static Electricity

• Magnetism

• Electromagnetism

An electric field that is + moves __________ to/from the charge.

• Inward

• Outward

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What is the unit of electrical resistance?

• Volt

• Ampere

• Ohm

• Watt

What type of energy transformation occurs in a battery-powered flashlight?

• Chemical to Electrical to Light

• Electrical to Chemical to Light

• Light to Chemical to Electrical

• Chemical to Light to Electrical

What is the term used to describe the opposition that a device or material offers to the flow of direct current?

• Resistance

• Capacitance

• Inductance

• Conductance

How could I increase the strength of my electromagnet?

• More Batteries

• Smaller paper clips

• More loops of copper wire

• Larger Nail

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Select all the examples of an electromagnet.

• Speaker

• Motor

• Hard Drive

• Junkyard Magnet

• Refrigerator Magnet

Tags

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What forces works only by combining electric and magnetic forces?

• electric

• magnetic

• static electricity

• electromagnet

Tags

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