Electromagnets

An electromagnet may be produced by making electricity flow through a coil of wire wound around an iron nail.

• True

• false

When electricity stops flowing through a coil of wire, the nail continues attracting any metal or magnetic material.

• True

• false

Tags

NGSS.MS-PS2-5

An electromagnet can be made stronger by using less coils of wire.

• True

• false

The number of dry cells used affects the magnetism of an electromagnet. More dry cells mean less magnetism.

• True

• false

Electromagnets are permanent magnets that can attract any metal or magnetic material.

• True

• false

Tags

NGSS.MS-PS2-5

Electricity and magnets are closely related to each other.

• True

• false

Tags

NGSS.MS-PS2-3

Electromagnet is a temporary magnet.

• True

• false

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A crane that lifts heavy objects is also made of an electromagnet.

• True

• false

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A magnet is usually made of plastic.

• True

• false

Tags

NGSS.5-PS1-3

A nail is not a magnet but it can be turned into one.

• True

• false

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5