The statement 'Most electricity is measured in kilowatt-hours' is:

The statement 'Most electricity is measured in kilowatt-hours' is:

• A. True
• B. False
• C. Both true and false
• D. Depends on region

Answer: (A)

Kilowatt-hours are the standard unit for measuring electrical energy over a period. Electricity is delivered as power at an instant (watts or kilowatts), but what utilities bill and track is the total energy used over time. Energy is power multiplied by time, and the common billing unit is kilowatt-hours, which conveniently reflects typical household usage (1 kWh = 3.6 million joules). While energy can be expressed in joules or larger units like megawatt-hours in other contexts, everyday measurement and billing rely on kilowatt-hours. Therefore, the statement is true.

Kilowatt-hours are the standard unit for measuring electrical energy over a period. Electricity is delivered as power at an instant (watts or kilowatts), but what utilities bill and track is the total energy used over time. Energy is power multiplied by time, and the common billing unit is kilowatt-hours, which conveniently reflects typical household usage (1 kWh = 3.6 million joules). While energy can be expressed in joules or larger units like megawatt-hours in other contexts, everyday measurement and billing rely on kilowatt-hours. Therefore, the statement is true.