S8P5 Electricity & Magnetism

Front

What is an electrical insulator?

Back

An electrical insulator is a material that does not allow electric current to flow through it easily. Examples include rubber, plastic, and glass.

Front

Which material is not an electrical insulator: copper wire, cotton gloves, plastic, or rubber tubing?

Back

Copper wire is not an electrical insulator; it is a conductor.

Front

What happens to iron filings when sprinkled over a magnet covered with paper?

Back

The iron filings align themselves along the magnetic field lines, revealing the shape of the magnetic field.

Front

How does Earth's magnetic field compare to that of a bar magnet?

Back

Both have magnetic fields that are strongest at their poles.

Front

What occurs when a negatively charged rod is brought near two touching neutral balloons?

Back

Electrons on the balloons will move away from the rod, causing the balloons to become positively charged and repel each other.

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Front

What is the principle behind the hovering magnet demonstration?

Back

The opposite poles of each magnet are facing each other, causing them to repel.

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Front

What is magnetism?

Back

Magnetism is a force that can attract or repel certain materials, primarily metals like iron, nickel, and cobalt.

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Front

What is the role of electric current in magnetism?

Back

Electric current can create a magnetic field, which is the principle behind electromagnets.

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Front

What is a magnetic field?

Back

A magnetic field is the area around a magnet where magnetic forces can be detected.

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Front

What happens to the magnetic field strength as you move away from a magnet?

Back

The magnetic field strength decreases as you move further away from the magnet.

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