Electricity in Daily Life

What is an electric circuit?

• A device for measuring electricity

• A type of battery

• A path that allows electricity to flow

• A type of light bulb

Name three safety precautions to take when dealing with electricity.

• Work on electrical circuits with wet hands

• 1. Always turn off the power before working on electrical circuits. 2. Use insulated tools and equipment. 3. Avoid working in wet conditions or with wet hands.

• Wear metal jewelry while working with electricity

• Use damaged or frayed electrical cords

Give an example of a heating appliance that uses electricity.

• Wood-burning fireplace

• Electric heater

• Gas stove

• Oil furnace

What are the different types of electrical hazards?

• Slip and fall accidents

• Car accidents

• Food poisoning

• The different types of electrical hazards include electric shock, burns, fires, and explosions.

Explain the concept of series and parallel circuits.

• Series circuits have components connected in multiple loops, while parallel circuits have a single path for the current to flow.

• Series circuits have components connected randomly, while parallel circuits have a specific order for the current to flow.

• Series circuits have components connected in a single loop, while parallel circuits have no path for the current to flow.

• Series circuits have all components connected in a single loop, while parallel circuits have multiple paths for the current to flow.

Why is it important to unplug electrical appliances when not in use?

• To save energy and reduce the risk of electrical fires.

• To increase the risk of electrical fires

• To waste energy and increase the electricity bill

• To make the appliances last longer and work more efficiently

List three examples of renewable energy sources used to generate electricity.

• Solar, wind, and hydroelectric power

• Coal, natural gas, and oil

• Tidal, wave, and fossil fuels

• Nuclear, geothermal, and biomass

What is the purpose of a circuit breaker in a household electrical system?

• To regulate the water temperature in the house

• To keep the refrigerator running smoothly

• To provide extra lighting in the house

• To protect the electrical system from overloading or short circuits.

Explain the difference between AC and DC electricity.

• AC electricity and DC electricity both change direction periodically.

• AC electricity changes direction periodically, while DC electricity flows in one direction only.

• AC electricity flows in one direction only, while DC electricity changes direction periodically.

• AC electricity and DC electricity both flow in one direction only.

What are the advantages of using LED lights over incandescent bulbs?

• LED lights are less energy efficient and have a shorter lifespan compared to incandescent bulbs.

• LED lights are more energy efficient, have longer lifespan, and produce less heat compared to incandescent bulbs.

• LED lights are more expensive and harder to find than incandescent bulbs.

• LED lights produce more heat than incandescent bulbs.