Electrical Circuits

Why is electrical wiring usually made from copper?

• Because copper is shiny

• Because copper conducts electricity

• Because copper is not magnetic

• Because copper insulate electricity

Tags

NGSS.MS-ETS1-1

A material that does NOT let electricity pass through it is called ...

• An electrical conductor

• An electrical insulator

• An electrical source

• An electric appliance

An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —

• Point D to Point C
• Point B to Point C
• Point A to Point D
• Point B to Point D

Tags

NGSS.4-PS3-2

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.4-PS3-2

Which of the following can work as an energy source?

• Battery
  
• Light bulb
• Wire
  
• All of them

Tags

NGSS.4-PS3-2

What are the 3 basic components of a circuit?

• Energy source, Load, Energy Pathway

• Battery, Energy source, Energy Pathway

• Battery, Wire, Energy Pathway

• ALL of them

As the resistance of a circuit increases, the current will

• increase
• decrease
• stay the same

What 'flows' in a wire?

• Protons
• Neutrons
• Atoms
• Electrons

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

The table describes four different resistance wires.

They are all made from the same metal.

Which wire has the smallest resistance?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

A student uses a length of wire as a resistor. He makes a second resistor from the same material.

To be certain of making a second resistor of higher resistance, he should use a piece of wire that is:

• longer and thicker.

• longer and thinner.

• shorter and thicker.

• shorter and thinner.