Open and Close Circuit

What is a closed circuit?

• A circuit with a broken wire

• A circuit with no power source

• A circuit with a complete loop for current to flow

• A circuit with a disconnected component

In an open circuit, what happens to the flow of electricity?

• It stops

• It increases

• It decreases

• It reverses

Which of the following is an example of a closed circuit?

• A broken wire

• A disconnected battery

• A wire connected to both ends of a battery

• A wire touching only one end of a battery

What does an LED stand for?

• Light Emitting Diode

• Light Emitting Device

• Long Electrical Device

• Low Energy Diode

In which direction does current flow in a circuit?

• From negative to positive

• From positive to negative

• It depends on the type of circuit

• It doesn't flow in a circuit

What is a resistor used for in a circuit?

• To increase the flow of electricity

• To decrease the flow of electricity

• To control the direction of current

• To generate electricity

What does a breadboard do in a circuit?

• Provides power to components

• Acts as a switch

• Provides a platform to build and test circuits

• Amplifies signals

In an open circuit, the voltage across the components is:

• Zero

• Maximum

• Variable

• Decreasing

In a closed circuit, what happens when the resistance increases?

• Current decreases

• Voltage decreases

• Current increases

• Voltage increases

Which of the following is a characteristic of an LED?

• It has high resistance

• It emits light when current flows through it

• It absorbs light

• It does not require voltage