Magnetism Review

A student makes an electromagnet but needs it to be stronger. Which of the choices below would accomplish this?

• Add more loops of wire to the coil.

• Remove loops of wire from the coil.

• Reduce the voltage of the battery.

• Increase the voltage of the battery.

Tags

NGSS.MS-PS3-3

What is the energy conversion that takes place in a motor?

• electromagnetic to mechanical

• mechanical to light

• gravitation to mechanical

• mechanical to electromagnetic

What is the energy conversion that takes place in a generator?

• electromagnetic to mechanical

• mechanical to light

• gravitation to mechanical

• mechanical to electromagnetic

Tags

NGSS.HS-PS3-3

NGSS.HS-PS3-5

Which of these choices will create a magnetic field

• A spinning electron

• A current-carrying wire

• A coil of wire connected to a voltmeter

• A battery sitting on the desk.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Students collect data during a lab about the magnetic field that forms around a current-carrying wire. Look at the data table and choose the student below who has the best justification for the results.

• The distance from the wire does not affect the magnetic field strength detected.

• The closer you get to the wire, the stronger the magnetic field strength becomes.

• The closer you get to the wire, the weaker the magnetic field strength becomes.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Students collect data during a lab about the magnetic field that forms around a current-carrying wire. Look at the data table and choose the student below who has the best justification for the results.

• The current through the wire does not affect the magnetic field strength detected.

• The higher the current in the wire, the stronger the magnetic field strength becomes.

• The higher the current in the wire, the weaker the magnetic field strength becomes.

Tags

NGSS.MS-PS2-3

Which of the following best describes a situation in which magnetic induction is occurring?

• A permanent magnet sits beside a wire and current flows through the wire.

• An ammeter is attached to the wire and current flows through the wire.

• A coil of wire is moved inside a magnetic field from a permanent magnet creating current in the wire.

• A switch is closed on a simple circuit with a battery and a switch so current flows through the wire.

Tags

NGSS.HS-PS2-5

Which device can be used to detect the presence and direction of a magnetic field?

• A generator

• An ammeter

• A compass

• A ruler

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The device pictured to the right is a(n)

• generator

• motor

• electromagnet

• magnet inducer

Tags

NGSS.MS-PS2-3

Which of the following items are required to make a motor?

• An iron core

• A coil of wire

• A battery

• A permanent magent