Understanding Electricity: From Nature to Technology

What natural phenomenon is described as an electric current in nature?

• Lightning

• Thunder

• Wind

• Rain

What type of current flows in one direction from positive to negative?

• Alternating current

• Direct current

• Cyclic current

• Static current

What is the primary component inside batteries that helps generate electricity?

• Electrons

• Protons

• Neutrons

• Photons

What do solar cells use to generate electricity?

• Sunlight

• Chemical reactions

• Water

• Wind

What device adjusts the power entering your home from the power lines?

• Generator

• Transformer

• Circuit breaker

• Capacitor

What is the main difference between alternating current and direct current?

• Source of power

• Use in households

• Direction of flow

• Speed of electrons

What is the role of a transformer in the electrical power distribution system?

• Generate electricity

• Store excess power

• Reduce high voltage to safer levels

• Convert AC to DC

Which type of power plant uses the heat from inside the Earth?

• Hydroelectric

• Geothermal

• Biomass

• Nuclear

Which type of power generation involves splitting atoms to produce heat?

• Fossil fuel

• Nuclear

• Wind

• Solar

What is the main function of an insulator in electrical wiring?

• Prevent electrical flow

• Conduct electricity

• Increase voltage

• Store energy