P3.2 Simple Circuits

• What is a simple circuit?

  A basic electrical circuit
• A closed circuit is required for electricity to flow in a simple circuit.

  True
• Match the component with its example:

  Power source ↔️ Battery

  Conductor ↔️ Wires

  Switch ↔️ Toggle switch

  Load ↔️ Light bulb
• The switch in a simple circuit controls the flow of electrical current
• A conductor allows electrical current to flow through a circuit.


  True
• What is a closed circuit in electrical terms?

  A continuous path for current
• Match the component with its function:

  Power source ↔️ Provides electrical energy

  Conductor ↔️ Allows current to flow

  Switch ↔️ Controls current flow

  Load ↔️ Consumes electrical energy
• What is the primary function of a power source in a circuit?

  Provides electrical energy
• A switch controls the flow of current by opening or closing the circuit.


  True
• What is a circuit diagram used for?

  Understanding and designing circuits
• A battery increases voltage by connecting multiple cells together.


  True
• Wires in a circuit allow current to flow between components.
• A simple circuit includes a power source, conductor, switch, and load.

  True
• What does a switch control in a simple circuit?

  The flow of current
• A power source in a simple circuit provides electrical energy.
• A switch can open or close a circuit to control current flow.


  True
• What does a load consume in a circuit?

  Electrical energy
• A circuit diagram uses standard symbols for each component.
• What is a circuit diagram?

  Visual representation of a circuit
• Match the electrical symbol with its description:

  Cell ↔️ Provides electrical energy

  Battery ↔️ Increases voltage

  Resistor ↔️ Limits current flow

  Light bulb ↔️ Emits light when current flows
• Why is understanding electrical symbols important?

  Design and analyze circuits
• Match the electrical symbol with its description:

  Cell ↔️ Provides electrical energy

  Battery ↔️ Increases voltage

  Resistor ↔️ Limits current flow

  Light bulb ↔️ Emits light when current flows
• What is electric current?

  Flow of electric charge
• Match the factor affecting current flow with its description:

  Voltage ↔️ Drives current flow

  Resistance ↔️ Opposes current flow

  Ohm's Law ↔️ Relates V, I, and R
• What is the unit of voltage?

  Volt (V)
• Increasing voltage increases current flow in a circuit


  True
• AC voltage sources produce a sinusoidal alternating current
• Common voltage sources include batteries and power supplies
• What are the key components of a simple circuit?

  Power source, conductor, switch, load
• What is the role of a conductor in a simple circuit?

  Allows electric current to flow
• What is the primary function of a switch in a circuit?

  Controls current flow
• A complete circuit is also known as a closed circuit.

  True
• Match the component with its description:

  Power source ↔️ Provides electrical energy

  Conductor ↔️ Allows current to flow

  Switch ↔️ Controls current flow

  Load ↔️ Consumes electrical energy
• What must be present for a circuit to be considered closed and allow electricity to flow?

  Continuous path
• Match the component with its function:

  Conductor ↔️ Allows electric current

  Load ↔️ Consumes electrical energy

  Switch ↔️ Controls current flow

  Power source ↔️ Provides electrical energy
• Match the electrical symbol with its description:

  Cell ↔️ Single unit of energy

  Battery ↔️ Multiple cells connected

  Resistor ↔️ Limits current flow

  Light bulb ↔️ Emits light when current flows
• A battery provides a higher voltage than a single cell.


  True
• Alternating current (AC) produces a sinusoidal alternating voltage
• What are the two main types of voltage sources?

  DC and AC
• DC voltage sources are commonly used in portable electronics.

  True