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What is required for electric current to flow through a circuit? 2. What controls the flow of current in a simple circuit? 3. In a simple circuit, what happens when the switch is open? 4. What is transferred as electric current travels through a circuit? 5. What is a circuit diagram used for...

What is required for electric current to flow through a circuit? 2. What controls the flow of current in a simple circuit? 3. In a simple circuit, what happens when the switch is open? 4. What is transferred as electric current travels through a circuit? 5. What is a circuit diagram used for? 6. Which symbol represents a battery in a circuit diagram? 7. In a circuit, in which direction does current flow? 8. What is the unit of measurement for electric current? 9. How would you describe voltage in a circuit? 10. What instrument is used to measure voltage? 11. What is the process called by which electricity generators convert energy from various sources into electrical power? 12. Name a common renewable source of energy used to generate electricity. 13. What is the main function of the electricity grid? 14. Which component of the electricity grid lowers the voltage for safe distribution? 15. During which stage of electricity distribution is high-voltage electricity carried over long distances?