Electricity

Which of these materials is a good conductor of electricity?

• Rubber

• Metal

• Newspaper

• Glass

Tags

NGSS.5-PS1-3

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

Tags

NGSS.3-PS2-3

NGSS.4-PS3-2

Which of the following items would conduct electricity?

• Aluminum ladder

• Metal screwdriver

• Wooden baseball bat

• Rubber flip flops

Tags

NGSS.4-PS3-2

NGSS.5-PS1-3

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.3-PS2-3

A penny is an example of

• An insulator

• an electron

• a proton

• a conductor

Tags

NGSS.5-PS1-3

which of the following materials are best used as insulators?

• Wood

• Rubber

• Metal

• Plastic

Tags

NGSS.5-PS1-3

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

Tags

NGSS.3-PS2-3

NGSS.4-PS3-2

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

Tags

NGSS.5-PS1-3

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

Tags

NGSS.4-PS3-2

NGSS.4-PS3-4

When a switch is turned on, you close a circuit so that it is___________.

• incomplete
• inactive
• complete
• broken