Lesson 3-4 Circuits & Electromagnetism

A simple circuit can be defined as a_______________.

• scientific experiment that proves light bulbs can light

• magnetic field that generates electricity

• connected path that electricity can flow through.

• battery-operated light switch

All simple circuits contain three things:

• a power source, wires, and load

• iron, metal and copper

• density, mass and gravity

• force, magnetism and electricity

Wires are a conductor that carries electrical energy from a source to an object transforming the energy. True or False?

• True

• False

A closed circuit is when everything is connected, allowing electricity to flow to a light bulb and turn on. True or False?

• True

• False

Which definition of an open circuit is the most accurate?

• Electricity is possible because everything is connected, allowing the bulb to turn on

• An object can become magnetized and create electromagnetic energy because everything is connected.

• Something is missing, not touching, or not connected, which creates a break in the circuit -- NOT allowing electricity to the bulb, so it will NOT turn on.

• When the switch is left open in a circuit, but electricity still is able to flow through the wires, allowing the light bulb to turn on.

A device that can open or close a circuit is called a ______.

• alligator clip

• battery

• wire

• switch

Tags

NGSS.MS-ETS1-1

Electric current can be defined as the movement of magnetic energy. True or False?

• True

• False (it is when electrically charged particles move)

The positive side of a battery has positively charged particles. True or False?

• True

• False

The negative side of a battery has positively charged particles. True or False?

• True

• False (they have negatively charged particles)

A current flows through the ____ material that lights the bulb.

• corrosive

• conductive

• magnetic

• energetic