Magnetic, Electric, Electromagnetic Forces

If you wrap more coils around an electromagnet, it will become...

• brighter
• stronger
• weaker
• invisible

Passing a current through a wire with a battery will produce

• a magnetic field

• an electric field

• a current field

• nothing is produced

Tags

NGSS.HS-PS2-5

What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Because you can’t see electricity you have to have some kind of evidence that it is flowing.

• true

• false

Evidence that electricity is flowing would be things like the

• light bulb lighting up

• the switch is closed

• there is a complete circuit

• none of the above

The D-cell (battery) is a source of energy

• True

• False

A student set a compass on top of a wire not yet connected in a circuit. When she connected the wire to the positive side of the D-cell, the compass needle moved because

• There is no electric current

• A magnetic field surrounds a wire when electric current flows through it.

• there is a magnet on the end

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A thinner wire lifts less paper clips

• true

• false

A thicker wire lifts less paper clips

• true

• false

A thicker wire lifts more paper clips

• true

• false