kW

Học thuật
Thân thiện
Definition
  1. Noun:
    • A unit of power equal to 1000 watts: "kW" is an abbreviation for kilowatt, a standard unit of measurement for power in the International System of Units (SI). It represents one thousand watts.
Usage Examples
  • Noun:
    • The new air conditioner has a power rating of 2 kW.
    • Solar panels on the roof can generate up to 5 kW during peak sunlight.
Advanced Usage
  • "kW" in technical contexts: Commonly used in engineering, physics, and electricity billing to quantify rates of energy consumption, generation, or transfer.
    • The engine's maximum output is 150 kW.
  • "kW" vs. "kWh": It is critical to distinguish between kilowatt (kW), a unit of power (the of energy use), and kilowatt-hour (kWh), a unit of energy (the used over time).
    • A 1 kW heater running for one hour consumes 1 kWh of energy.
Variants and Related Words
  • Kilowatt (full form): The complete, unabbreviated form of "kW".
    • The contract specifies a capacity of ten kilowatts.
  • Megawatt (MW): A unit equal to 1,000 kilowatts or 1,000,000 watts.
  • Watt (W): The base SI unit of power, equal to one joule per second. One kilowatt equals 1000 watts.
Synonyms
  • Kilowatt: The full term for which "kW" is the standard abbreviation. There is no true synonym with a different spelling.
Notes on Usage
  • Writing Conventions: The abbreviation "kW" is written with a lowercase 'k' and an uppercase 'W'. It is often written without a space between the number and the unit (e.g., 15kW).
  • Context: Almost exclusively used in scientific, technical, commercial, and industrial contexts related to electricity, mechanics, and energy. It is not typically used in everyday conversational language outside of discussing appliances or vehicle power.
Noun
  1. a unit of power equal to 1000 watts

Từ đồng nghĩa

Từ gần giống

Từ chứa "kW"