Forces At A Distance

Front

What is a force at a distance?

Back

A force that acts on an object without direct contact, such as gravitational, magnetic, or electric forces.

Front

What materials are typically attracted to magnets?

Back

Materials like iron, nickel, and cobalt are attracted to magnets.

Front

What is an electromagnet?

Back

A type of magnet in which the magnetic field is produced by an electric current.

Front

How does the number of coils of wire affect the strength of an electromagnet?

Back

Increasing the number of coils increases the strength of the magnetic field produced.

Front

What is the role of electrons in electricity?

Back

Electrons flow through a conductor (like a wire) to create an electric current.

Front

What happens to the magnetic field when current flows through a wire?

Back

A magnetic field is created around the wire when current flows through it.

Front

What is magnetic attraction?

Back

The force that pulls certain materials toward a magnet.

Front

What is magnetic repulsion?

Back

The force that pushes certain materials away from a magnet.

Front

How does distance from a magnet affect the force exerted by the magnet?

Back

The force exerted by a magnet decreases as the distance from the magnet increases.

Front

What is the difference between a permanent magnet and an electromagnet?

Back

A permanent magnet produces a constant magnetic field, while an electromagnet's field can be turned on or off and adjusted in strength.