Milady Electricity

Why does the top magnet appear to float above the bottom magnet?

• The magnets are made of different materials.

• The like poles repel each other.

• The opposite poles repel each other.

• the magnets have different gravitational pull

Tags

NGSS.MS-PS2-5

The student conducted an experiment with circuits. Why was the bulb bright when he closed the switch?

• The switch produced an electric current

• Closing the switch broke the circuit

• Closing the switch completed the circuit

• The switch did not make a difference

How can it be explained that someone's hair can stick to a balloon?

• There is static electricity

• There is too much dust in the air

• A parallel circuit was too long

• The person needs to wash his hair

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A science class was completing an experiment on electrical circuits. Why did the bulb go out each time the switch was opened?

• Opening the switch broke the circuit

• The battery was probably going flat

• There was too much electricity flowing

• Opening the switch closed the circuit

Which of these materials is a good conductor of electricity?

• Rubber

• Metal

• Newspaper

• Glass

Which of the following items would conduct electricity?

• Aluminum ladder

• Metal screwdriver

• Wooden baseball bat

• Rubber flip flops

A penny is an example of

• An insulator

• an electron

• a proton

• a conductor

which of the following materials are best used as insulators?

• Wood

• Rubber

• Metal

• Plastic

Tags

NGSS.MS-PS3-3

The student arrived home and turned on a light switch, so she could see how to get to her bedroom. The switch allowed electricity to flow and was transformed into-

• Light energy

• mechanical energy

• superior energy

• radiant energy

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

Tags

NGSS.MS-PS2-3