Electromagnets

What component becomes a temporary magnet when electricity is flowing through the circuit?

• d -cell
• wire coil
• switch
• core

Tags

NGSS.MS-PS2-3

What component provides the pathway to carry electricity from component to component?

• d cell
• wire
• switch
• wire coil

Which component controls the flow of electricity by opening and closing the circuit?

• switch
• d cell
• wire coil
• core

Which component provides the stored energy to run the electromagnet?

• d cell
• core
• coil
• wire

Samuel Morse, the inventor of the telegraph had a problem.  How can he increase the strength of the electromagnet in his telegraph?

• use thinner wire
• add more d-cells
• add a switch
• wind fewer wraps of wire around core

Tags

NGSS.MS-PS2-3

When _______________ travels through a

conductor, a magnetic field is created

• current

• a magnetic field

• neutrons

Tags

NGSS.MS-PS2-3

Electric currents produce _____________

• electron clouds

• magnetic fields

• sound waves

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

In magnets and electromagnets, similar poles attract

• true

• false

Tags

NGSS.MS-PS2-3

In magnets and electromagnets, dissimilar (opposite) poles attract

• true

• false

Tags

NGSS.3-PS2-3

In a battery, electrons collect at the __________________ end of the battery.

• positive

• middle

• negative

Tags

NGSS.MS-PS2-5