Unit 4 Electricity

A fifth-grade class constructed this circuit. Which item below would cause the light to glow when connected from point X to Y?

• Piece of Yarn

• Cotton Ball

• Eraser

• Metal Coin

A(n) _____________ circuit will NOT conduct electricity.

• series

• parallel

• open

• closed

Bits of paper are attracted to the surface of this balloon. What attracts the paper pieces to the balloon?

• Magnetism

• Friction

• Static Electricity

• Kinetic Energy

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NGSS.MS-PS2-5

When in use, which energy transformation does the drill show?​ ​ (a)   to ​ (b)   energy.

• electric
• mechanical
• thermal
• radiant
• nuclear
• chemical

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

To make an electromagnet, a conductor should be coiled around _____.

• a glass tube

• a roll of paper

• an iron nail

• a wooden stick

How can the strength of an electromagnet be tested?

The more times the wire is wrapped around the nail, the ​ (a)   the strength of the electromagnet. If wraps are removed, then the magnet will become ​ (b)   .

• greater
• weaker
• electricity
• magnet
• static
• nail

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

You and a friend each want to design an electromagnet that will pick up the most paper clips. You have all the materials you need: a battery, iron nail, copper wire, and a bit of electrical tape to protect your hands when you hold it. How will you connect the wire from the battery to the nail?

• Wrap the wire around the battery in loose coils and attach one end to the iron nail.

• Wrap the wire around the nail in tight coils and attach one end to one pole of the battery.

• Wrap the wire around the nail in loose coils and attach one end to one pole of the battery.

• Wrap the wire around the nail tightly and attach both loose ends to the poles of the battery.

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NGSS.MS-ETS1-1

NGSS.MS-PS2-5

Which picture shows a circuit that energy can flow through to make the light bulb glow?

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NGSS.4-PS3-2

Malik rubbed a balloon with a wool cloth to give it an electrical charge. He placed the balloon next to a wall. The balloon stuck to the wall. Which picture shows why the balloon stuck to the wall?

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

A series circuit consists of four light bulbs. If the first light bulb burns out, what will MOST likely happen to the other light bulbs?