Electricity and Magnetism

A complete circuit has .......

• a motor in it
• a switch in it
• two bulbs in it
• no breaks in it

What is an electrical circuit?

• lets you turn the energy on and off
• a closed path where where electricity flows
• stop electricity from flowing through

You know that the object connected to the wires is a conductor because:

• The light bulb is glowing bright.
• It's a complete circuit.
• It's a closed circuit.
• The object is shiny.

Something electricity can't move through is called a(n) ______.

• conductor
• wire
• shoe
• insulator

Which is NOT an insulator.

• Wool
• Plastic
• Copper
• Glass

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Why are metals useful for making electrical wire?

• Metals do not bend.
• Metals hold much heat.
• Metals are insulators.
• Metals are conductors.

A student began building a circuit to light a bulb.  What else does the student need to produce light?

• a battery that has energy
• a wire that is insulated
• a switch that is open
• another bulb of the same size

Tags

NGSS.3-5-ETS1-1

NGSS.3-5-ETS1-2

This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -

• the switch gives energy to the battery
• the buzzer is made of special plastic
• the wires are cooled by the surrounding air
• electricity can flow in a complete path

Tags

NGSS.MS-PS2-3

This image represents what type of circuit?

• open
• closed
• series
• parallel

What type of circuit is represented by the diagram?

• closed
• series
• open
• parallel