Gravity, Electricity, & Magnetism Review

Front

What happens to the total electrical charge when two neutral materials are rubbed together?

Back

The total electrical charge for the system remains constant (unchanged) as electrons are transferred.

Front

What is the direction of the magnetic field around a bar magnet?

Back

The magnetic field lines exit from the north pole and enter the south pole.

Front

What is static discharge?

Back

Static discharge is the sudden flow of electrons when negative charges in a cloud jump to an object containing the opposite charge.

Front

What happens to the pole strength of an electromagnet as the number of turns is decreased?

Back

The pole strength of the electromagnet decreases.

Front

What is an electric generator?

Back

An electric generator is a device where a magnet is rotated through a coil of wire to produce an electric current.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, proportional to their masses and inversely proportional to the square of the distance between them.

Front

What is the relationship between electricity and magnetism?

Back

Electricity and magnetism are interrelated; a changing electric field creates a magnetic field and vice versa.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Front

What is induction in the context of electricity?

Back

Induction is the process by which an object becomes electrically charged without direct contact with a charged object.

Front

What is the role of electrons in electrical charge transfer?

Back

Electrons are negatively charged particles that can be transferred between materials, leading to a change in electrical charge.