8.3 lesson 1-3

what is this?

• electromagnet

• permanent magnet

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NGSS.MS-PS2-3

Why will the compass needle move? Select all that apply.

• Because electric current is flowing through the wire

• Because a magnetic field is being produced

• Because the wire is hot

• Because the current is creating thermal energy

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NGSS.MS-PS2-3

What is an electromagnet?

• a temporary magnet made from current carrying wire around a magnetic metal core.
• a permanent magnet with a north and south pole

Tags

NGSS.MS-PS2-3

Surrounding every magnet is a __________  __________.

• magnetic field
• electrical current
• another magnet

Which of the following is not needed for the speaker system to produce a sound?

• Cone

• the spider

• copper coil

• Magnet

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NGSS.MS-PS4-2

In Lesson 1 we created a homemade speaker, which statement is true about the system we built?

• The magnet is not needed for the cone to vibrate

• The magnet needs to be near the connector wires for it to work

• The magnet needs to be right near the copper coil for it to work

• The magnet needs to be attached to the cone

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

In lesson 2 we investigated magnets. According to our 1st investigation, what do magnets interact with?

• Anything made of metal

• Anything with copper in it

• Anything with iron in it

• We can not easily predict what they will interact with

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NGSS.3-PS2-3

According to Lesson 2 (Investigation 2), how do the magnet and copper coil behave when there is an electric current in the coil?

• They still do not interact at all

• They can pull on each other only

• They can push on each other only

• They can push or pull on each other

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

According to Lesson 2, how can we get the copper coil and magnet to change the direction of the force they apply to each other when the electricity is moving through the coil?

• We can't control which direction they apply force on each other

• We can turn the direction of the magnet or the coil

• We can disconnect the wires

• We can only make them apply force in one direction

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

According to lesson 2, an object that is able to attract other objects containing iron from a distance anytime is called a:

• Electromagnet

• Permanent magnet

• A power source

• A conductor

Tags

NGSS.MS-PS2-5