Electricity and Circuits Quiz

What is electricity a form of energy that results from?

• The flow of water and air

• The flow of charged particles, including protons and electrons

• The flow of magnetic fields

• The flow of sound waves

Which two main forms is electrical power transported and consumed in?

• Kinetic and potential

• Solar and wind

• Alternating current (AC) and direct current (DC)

• Static and dynamic

What needs to happen for an electrical device to operate using AC power from a wall socket?

• A conversion to DC power

• A conversion to solar power

• A conversion to kinetic energy

• A conversion to chemical energy

What are the three elements that every electrical circuit needs to function?

• A resistor, a capacitor, and an inductor

• A source, a load, and a conductive path

• A transformer, a switch, and a battery

• A diode, a transistor, and a microchip

What does the conductive path in an electrical circuit do?

• It converts energy into motion.

• It stores electrical energy.

• It forms a continuous path from the source to a load and back.

• It generates electrical energy.

What is the role of electrically conductive wires in an electrical circuit?

• They store the electrical energy.

• They convert the energy into sound.

• They transport the energy to the load.

• They insulate the circuit components.

What does an incandescent light bulb convert electrical energy into?

• Sound and light energy

• Light and thermal energy

• Chemical and electrical energy

• Mechanical and thermal energy

Why is a resistor needed in an LED circuit as shown in Figure 2?

• To increase the light output

• To convert more electrical energy into light

• To absorb some of the energy to avoid a short circuit

• To generate thermal energy

What is the main reason homes across the United States are converting from incandescent lighting to LEDs?

• LEDs are easier to install

• LEDs have a more aesthetic appeal

• LEDs are more efficient in energy conversion

• LEDs produce more thermal energy

What is the purpose of a circuit schematic?

• To provide a realistic image representation of each component

• To represent the circuit's electrical path and each component with lines and standard symbols

• To show the physical layout of the circuit components

• To demonstrate the color coding of wires in a circuit