Circuits

Amir, Mery, and Tristian are working on a school project about electrical safety. They are discussing the reason behind electrical wiring being covered with a layer of plastic. Can you help them understand the purpose of this plastic layer?

• Is it to make the wires look pretty?

• Or is it to help electricity flow along the wire?

• Maybe it's to make it safe?

• Or could it be to add more energy?

AnthonyF., Amir, and Hudson are discussing the reason behind the use of copper in electrical wiring. AnthonyF. thinks it's because copper is shiny, Amir believes it's because copper conducts electricity, and Hudson insists it's because copper is not magnetic. Who is correct?

• AnthonyF., because copper is shiny

• Amir, because copper conducts electricity

• Hudson, because copper is not magnetic

• None of them, because copper insulates electricity

Gio, Amir, and AnthonyF. are working on a school project about electrical conductivity. They have a plastic spoon, a silver-colored plastic spoon, a copper spoon, and a wooden spoon. Which spoon can they use to demonstrate electrical conductivity in their project?

• Plastic spoon

• Silver-colored plastic spoon

• copper spoon

• wooden spoon

AJ, Tristian, and Gio are working on a science project about electricity. They are learning about materials that allow electricity to pass through them and those that do not. What do we call a material that does NOT let electricity pass through it, like the one they are studying in their project?

• An electrical conductor

• An electrical insulator

• An electrical source

• An electric appliance

Bentley, Mila, and Mery are working on a school project together. They are trying to set up a lighting system for their miniature model of a city. They have an incomplete circuit in front of them.
To help them light up their model city, where should they place a wire?

• From the power source to the city hall

• From the city hall to the hospital

• From the power source to the hospital

• From the city hall to the power source

Amir, Mery, and Aubrey are working on a science project at school. They are building a circuit with a battery, a light bulb, and a switch.
When they flip the switch, the light bulb lights up because -

• the switch provides power to the battery

• the light bulb is made of special glass

• the wires are cooled by the classroom air

• electricity is able to flow in a complete path

AJ, Mila, and Bentley are on a camping trip and need to power their flashlight. Which of the following can work as an energy source for their flashlight?

• Battery
  

• Light bulb

• Wire
  

• All of them

Miles, Tristian, and AnthonyD are working on a science project about electrical circuits. They are trying to predict which combination of switches will light up the bulbs in their circuit. Can you help them figure it out?

• 1 and 2

• 2 and 3

• 3 and 4

• 4 and 2

Mila, Hudson, and Miles are working on a science project involving a flashlight. They have a disagreement about the flashlight's circuit. Can you help them choose the correct statement about the circuit in the flashlight?

• 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.

Tristian, Bentley, and Mila are playing with a remote-controlled car. They are curious to know, what is an electrical circuit?

• It's a magical switch that lets you turn the energy on and off

• It's a closed path where electricity flows, just like water in a river

• It's a barrier that stops electricity from flowing through