Electricity Basics

What is a circuit?

• A circuit is a type of animal

• A circuit is a closed loop through which an electric current can flow.

• A circuit is a type of vehicle

• A circuit is a type of dessert

Name a good conductor of electricity.

• Silver

• Gold

• Copper

• Aluminum

In which direction does electricity flow?

• From left to right

• From negative to positive

• From top to bottom

• From positive to negative

What is electric current measured in?

• Watts (W)

• Volts (V)

• Amperes (A)

• Ohms (Ω)

Why is electrical safety important?

• Electrical safety is important to prevent electrical hazards such as electric shocks, fires, and equipment damage.

• Electrical safety is not important in preventing accidents

• Electrical safety is important only for professionals, not for the general public

• Electrical safety is not necessary as long as the equipment is new

Define an open circuit.

• An open circuit is a circuit where there is too much current flowing, causing a short circuit.

• An open circuit is a circuit where all components are connected in series, ensuring continuous current flow.

• An open circuit is a circuit where the resistance is very low, allowing electricity to flow freely.

• An open circuit is a circuit where there is a gap or break in the path of the current flow, preventing electricity from flowing through the circuit.

What is the purpose of a switch in a circuit?

• To control the flow of electricity in a circuit.

• To store electricity in a circuit.

• To increase the resistance in a circuit.

• To generate heat in a circuit.

What is the symbol for a resistor in an electrical circuit diagram?

• Zigzag line

• Straight line

• Circle

• Triangle

What is the unit of electric current?

• C

• A

• B

• D

What is the role of an insulator in an electrical circuit?

• An insulator amplifies the flow of electricity in an electrical circuit.

• An insulator generates electricity in an electrical circuit.

• An insulator blocks the flow of electricity in an electrical circuit.

• An insulator changes the color of electricity in an electrical circuit.