Electricity

Which contribution toward understanding electricity was made by Michael Faraday?

• Created the first electric power generator

• Discovered that lightning carried electricity

• Concentrated on mass-producing long-lasting light bulbs

• Improved the telegraph system

What contribution did Thomas Edison make toward the study of electricity?

• He invented the light bulb

• He invented a generator that would produce electricity

• He discovered the nucleus of an atom

• He discovered that lightning is a form of electricity

Which would make the strongest electromagnet?

• A battery with 4 wire coils around a nail

• A battery with 6 wire coils around a nail

• A battery 10 wire coils around a nail

• A battery with 8 wire coils around a nail

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NGSS.MS-ETS1-1

Electricity used to operate a toaster or stove is transformed to -

• Potential energy

• Mechanical energy

• Superior energy

• Radiant energy

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Many electrical wires are wrapped with a plastic coating because plastic is -

• More dense than copper

• Able to keep its shape

• Less expensive than steel

• A good insulator

After returning from a winter vacation, a boy wanted to heat his home using electricity. The electricity was transformed into -

• Mechanical energy

• Superior energy

• Thermal energy

• Light energy

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Who is the scientist that created the lightning rod?

• Michael Faraday

• Thomas Edison

• Benjamin Franklin

• George Washington

Richard designed an experiment to test different materials to determine if they were an insulator or a conductor. He tested a wooden Popsicle stick, a plastic spoon, a metal spoon, and an eraser. He set up a simple circuit connecting a battery to a light bulb with a small gap. One at a time he connected the circuit with the chosen test materials and recorded whether the light bulb came on. Based on what you know about electrical conductors, which material made the bulb shine?

• The wooden Popsicle stick

• A plastic spoon

• A metal spoon

• An eraser

Pam’s teacher asked her group to design a simple electric circuit.

What materials would be necessary for Sam and her group to complete a simple circuit to turn on a bulb?

• Battery, wire, and bulb

• Battery and bulb

• Wire, bulb, and switch

• Battery, wire, and switch

Tags

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Which of the following is an example of human-harnessed electricity?

• Lightning striking a building

• Getting a small shock when touching a doorknob

• A hydroelectric dam

• Socks sticking together in a dryer