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Electromagnetism Test Review – Flashcard Assignment

Authored by Kristin Stewart

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12th Grade

Used 5+ times

Electromagnetism Test Review – Flashcard Assignment
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21 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is magnetism?

Magnetism is a fundamental force that relates to iron and other materials.

Magnetism is a type of sound wave that travels through air.

Magnetism is the process of converting water into steam.

Magnetism is a method of measuring temperature.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does an electron orbiting or spinning create?

An electron orbiting or spinning creates a magnetic dipole.

An electron orbiting or spinning creates a gravitational wave.

An electron orbiting or spinning creates a sound wave.

An electron orbiting or spinning creates a chemical bond.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when many atoms’ magnetic fields align in the same direction?

When many atoms’ magnetic fields align in the same direction, they form magnetic domains, which create stronger magnets.

The atoms lose their magnetic properties completely.

The atoms start to vibrate rapidly, producing heat.

The atoms become electrically charged and repel each other.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are magnetic lines of force?

Magnetic lines of force are invisible lines that represent the direction and strength of a magnetic field.

Magnetic lines of force are visible lines that can be seen with the naked eye around a magnet.

Magnetic lines of force are electric currents flowing through a wire.

Magnetic lines of force are the physical wires connecting two magnets.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Draw and explain how they flow outside (N → S) and inside (S → N) a magnet.

Magnetic field lines flow from the north pole to the south pole outside the magnet and from the south pole to the north pole inside the magnet.

Magnetic field lines flow from the south pole to the north pole outside the magnet and from the north pole to the south pole inside the magnet.

Magnetic field lines flow in a circular motion both inside and outside the magnet.

Magnetic field lines do not have a specific direction inside or outside the magnet.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is magnetic field strength related to flux density?

More lines of flux mean a stronger magnetic field.

Fewer lines of flux mean a stronger magnetic field.

Magnetic field strength is unrelated to flux density.

Flux density decreases as magnetic field strength increases.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What unit measures magnetic flux density? What is the value of Earth’s magnetic field?

The unit is Tesla (T); Earth's field is approximately 0.0001 T.

The unit is Newton (N); Earth's field is approximately 1 T.

The unit is Ampere (A); Earth's field is approximately 0.01 T.

The unit is Joule (J); Earth's field is approximately 0.1 T.

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