What is one of the key roles of electrical systems in modern society?

• They reduce the need for communication.

• They convert energy into unusable forms.

• They form the backbone of modern society.

• They limit the convenience of everyday life.

Which of the following is a function of electrical systems?

• They increase energy waste.

• They ensure efficient energy distribution and control.

• They complicate everyday tasks.

• They decrease global communication.

How do electrical systems enhance everyday life?

• By making tasks more difficult.

• By reducing energy efficiency.

• By enhancing convenience and functionality.

• By limiting communication.

Which of the following is an example of an electrical system you interact with daily?

• A bicycle

• A refrigerator

• A wooden chair

• A book

What is the correct way to write or speak about electrical systems you interact with daily?

• I don't use electrical systems.

• Electrical systems are everywhere.

• I like electrical systems.

• I interact with electrical systems only occasionally.

• Two examples of electrical systems I interact with daily are __________.

Which of the following is an example of an electrical system that provides illumination in a home?

• Mobile phone charger

• Lighting system

• Refrigerator

• Television

What is one function of a mobile phone charger as an electrical system?

• Provides heating

• Supplies power to recharge devices

• Cools the environment

• Transmits data

Where does the process of electricity reaching our homes begin?

• At the transformer stations

• At the power plants

• At the distribution centers

• At the high-voltage power lines

What are some energy sources mentioned that are converted into electricity?

• Oil, gas, and nuclear

• Coal, wind, and solar

• Hydro, geothermal, and biomass

• Natural gas, tidal, and hydrogen

How is electricity transmitted to homes and industries?

• Through underground cables

• Through wireless transmission

• Over high-voltage power lines

• Via satellite communication