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

Which bulbs will light?

• 1 and 2
• 2 and 3
• 3 and 4
• 4 and 2

Tags

NGSS.3-PS2-3

NGSS.4-PS3-2

Choose the correct sentence.

• This circuit will work because it is an open circuit.
• This circuit will work because it is a closed circuit.
• This circuit will NOT work because it is an open circuit.
• This circuit will NOT work because it is a closed circuit.

Tags

CCSS.RI.5.8

CCSS.RI.6.1

CCSS.RI.6.8

CCSS.RL.4.5

CCSS.RL.6.1

Material W, X and Y is connected to an electric circuit one at a time, as shown in the diagram below.
Which of the following could materials W, X and Y be?

• W – ceramic
  X – cloth
  Y - Iron
• W – Steel
  X – glass
  Y - plastic
• W – aluminium
  X – copper
  Y - rubber
• W – iron
  X – copper
  Y - gold

Which of the following objects, when placed in a closed circuit, will cause the bulb to light up?

A: Copper wire  B: Plastic ruler
C: Wooden chopsticks   D: Iron nail

• A and B only
• C and D only
• A and D only 
• B and C only

Tags

NGSS.MS-PS2-3

Max tested some objects with the circuit tester. Then, he recorded his results in the table below.

Based on his results, which of the following conclusions is the most likely to be true?

• A, B and C are flexible objects.
• B is a non-conductor of electricity.
• A is made of iron and B is made of copper.
• Conductors of electricity are also heat conductors.

Tags

NGSS.4-PS3-2

NGSS.5-PS1-3