Electricity and Magnetism Test

Which of the following demonstrates static electricity?

• You know you should never put your fingers into an electrical outlet. You could get shocked.
• You bend a paper clip back and forth until it breaks. The broken ends feel hot.
• You brush your hair on a cold, dry day. Your hair springs away from your head and sticks out in all directions.
• You use a charger to charge batteries for a digital camera.

Which is a correct statement about lights that are part of a series circuit?

• The lights will flash on and off in a pattern.
• If one light burns out, the others will go out.
• If one light burns out, the others will stay lit.
• Two switches are needed to turn the lights on and off

For an electrical device to operate properly, the circuit must be

• insulated.
• series.
• parallel.
• unbroken.

Of these materials, which would NOT make a good insulator

• plastics.
• metals.
• rubber tubing.
• cotton cloth.

Tags

NGSS.MS-PS3-3

The diagram below shows an electric circuit. Which explains why this circuit will NOT work?

• It has no energy source.
• It has no energy conductor.
• The energy receiver is too small.
• The energy pathway is not closed.

Tags

NGSS.MS-ETS1-1

Lightning is a form of

• air current
• magnetism
• cloud cover
• static electricity

Tags

NGSS.MS-PS2-3

Electric energy is produced by the movement of

• protons
• neutrons
• nucleus
• electrons

A student wants to block the flow of electricity. Which substance would be best?

• Aluminum
• Copper
• Iron
• Rubber

What kind of circuit allows a current to flow through it?

• Open
• Closed
• Electron
• Broken

Which type of circuit (series or parallel) would be best for a string of holiday lights so that if one bulb burns out, the rest of the lights will stay on? Why? (Please answer both questions to receive full credit)