Electromagnetism

Which object(s) have electric fields?

• Electric Charges

• Magnets

• Both Electric Charges & Magnets

• Electric fields do not exist

Which object(s) have magnetic fields?

• Electric Charges

• Magnets

• Both Electric Charges & Magnets

• Magnetic fields do not exist

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A(n) ___ converts electricity into magnetism.

• electric transformer

• electric generator

• electromagnet

• electric motor

Tags

NGSS.HS-PS2-5

A(n) ___ converts electricity into magnetism, and back to electricity.

• electric transformer

• electric generator

• electromagnet

• electric motor

Tags

NGSS.HS-PS2-5

Electric charges must ___ in order to create an observable magnetic field.

• exist

• be moving

• be stationary

• disappear

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What must occur for a magnetic field to induce an electric current?

• The magnetic field must be really big

• The magnetic field must be stable

• The magnetic field must be changing

• The magnetic field must be from a permanent magnet

Tags

NGSS.HS-PS2-5

A(n) ___ electric current will create a changing magnetic field.

• existing

• direct

• alternating

• stable

Tags

NGSS.HS-PS2-5

The ___ coils a wire has the ___ current is able to be generated.

• more; more

• less; more

• more; less

• less; less

Tags

NGSS.HS-PS2-5

What can electromagnets do that regular magnets can't?

• Explode

• No difference , both are the same

• Burn

• Switch their magnetic fields

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Can you produce current in a wire with a magnet that is sitting still?

• Yes; having a magnet near a wire is enough to excite the electrons

• No; the magnetic field has to be changing to excite the electrons

• No; magnets cannot create electricity

• None of the following