Electric Circuits and Electromagnets

Electric currents produce _____________

• electron clouds

• magnetic fields

• sound waves

Tags

NGSS.MS-PS2-5

What is an electrical circuit?

• a closed path where electricity flows

• Does not let electricity flow through it

• When a bulb does turn on

Which of the following can work as an energy source?

• Lightbulb

• Switch

• Wire

• Battery

Tags

NGSS.4-PS3-4

A battery has what kind of energy in it to power an electrical circuit?

• kinetic energy

• potential chemical energy

• gravitational energy

• kinetic chemical energy

Tags

NGSS.MS-PS3-2

In an electromagnet, the electrical current flows through the metal rivet.

• True

• False

Tags

NGSS.MS-PS2-3

Where on a lightbulb do the wires need to connect in order to complete the circuit? (Select all that apply)

• the glass part

• the filament

• the middle of the metal

• the bottom of the bulb.

A form of energy caused by the movements of electrons

• electricity

• electron

• electric current

• series circuit

The picture shows an electrical circuit. This circuit is a series circuit because:

• It has 3 light bulbs.

• The same current flows through all three light bulbs.

• It uses a single battery.

• The electrical current is divided between the three light bulbs.

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Add more coils of wire to the nail.

• Use a smaller battery.

• Reverse the poles of the magnet.

• Remove all the coils and the nail.

In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.

• wire, iron, electric

• electric, wire, iron

• iron, electric, wire

• excited, hair, apple