Unit 8.3 Quiz 4

Based on the magnetic field lines shown, what is the orientation of the mystery magnet (left --- right)?

• Cannot be determined.

• Could be either direction.

• N --- S

• S --- N

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Two N--S magnets are glued to a sheet of paper. Iron filings are sprinkled, and the table is tapped several times. Which image matches what the filings should look like?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

Which diagram correctly represents the direction of the magnetic field around a bar magnet?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

In the diagram, at which point is the magnetic field strongest?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If a small compass is placed near a bar magnet, which diagram correctly shows the position of the compass needle?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

How can magnets cause objects to have kinetic energy?

• A magnetic force can convert kinetic energy stored in a magnetic field to potential energy.

• Kinetic energy can convert potential energy stored in a gravitational field.

• A magnetic energy can convert potential energy stored in a gravitational field to kinetic energy.

• A magnetic force can convert potential energy stored in a magnetic field to kinetic energy.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS3-5

The figure shows an iron nail with an insulated wire coiled around it. The wire is connected to a battery. What will happen to the nail when current flows through the wire?

• The nail will become a magnet.

• Electric current will flow through the nail.

• The nail will melt.

• Nothing will happen to the nail.

Tags

NGSS.MS-PS2-5

An iron rod becomes magnetic when:

• all of the positive and negative charges move to opposite ends of the rod.

• all of the negative charges move to one end since positive charges are not free to move.

• a large number of domains of aligned atoms become aligned with each other.

• it comes into contact with ferromagnetic objects.