Forces At A Distance

Front

What is a force at a distance?

Back

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

Front

Which material is commonly attracted to a magnet?

Back

Iron.

Front

What is an electric current?

Back

The flow of charged particles, typically electrons, through a conductor.

Front

What do electric currents produce?

Back

Magnetic fields.

Front

What is an electromagnet?

Back

A type of magnet that is created by an electric current and can be turned on or off.

Front

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

Back

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

Front

What is a permanent magnet?

Back

A magnet that maintains its magnetic properties without the need for an external power source.

Front

What is the relationship between electricity and magnetism?

Back

Electricity can create magnetic fields, and moving magnets can induce electric currents.

Front

What is a magnetic field?

Back

An invisible field around a magnet where magnetic forces can be detected.

Front

What is the difference between a contact force and a force at a distance?

Back

Contact forces require physical touch, while forces at a distance act without direct contact.