Closed and Open Circuits Quiz

What is a closed circuit?

• A complete and unbroken path for an electric current.

• A circuit with only one component

• A circuit that is open to the air

• A circuit with no electricity flowing

How can you test for a closed circuit?

• Blow on the circuit to see if air can pass through

• Use a multimeter or circuit tester to check for continuity or current flow.

• Use a ruler to measure the length of the circuit

• Shake the circuit to see if any loose parts rattle

What is an open circuit?

• A circuit with all components connected in series

• A circuit with too much current flowing through it

• A circuit with no power source

• A circuit where there is a break in the continuity, preventing the flow of current.

How can you test for an open circuit?

• Look for sparks

• Listen for a buzzing sound

• Use a thermometer to measure the temperature

• Use a multimeter to check for continuity or resistance

What happens in a closed circuit?

• The electric current can flow continuously because the circuit is complete and unbroken.

• The electric current stops flowing because the circuit is complete and unbroken.

• The circuit becomes more efficient at conducting electricity.

• The circuit becomes less safe for use.

What happens in an open circuit?

• The voltage increases

• The resistance decreases

• The current flows at maximum speed

• The current cannot flow

What are the components of a closed circuit?

• battery, non-conductive material, resistor

• solar panel, magnetic material, capacitor

• power source, conductive material, load

• water source, insulating material, switch

What are the components of an open circuit?

• solar panel, inductor, transformer

• generator, fuse, motor

• power source, switch, load

• battery, resistor, capacitor

Why is it important to know the difference between open and closed circuits?

• To bake a cake

• To troubleshoot electrical problems and design electrical systems.

• To learn a new language

• To go on a vacation

Tags

NGSS.MS-PS2-3

Give an example of a closed circuit in everyday life.

• Opening a window to let fresh air in

• Turning on a faucet to let water flow

• Starting a car engine to drive

• Turning on a light switch to illuminate a bulb