1 kW power is equal to ______. (KW stands for kilowatt.)  

The Correct answer is 1 kW = 1000 J/s.

Key Points

• The unit kilowatt (kW) is a measure of power in the International System of Units (SI).
• 1 kilowatt is equivalent to 1000 watts (W), where 1 watt is defined as 1 joule per second (1 W = 1 J/s).
• Thus, 1 kW = 1000 J/s, which means that 1 kilowatt represents the transfer of 1000 joules of energy per second.
• This relationship is derived from the basic definition of power, which is the rate of doing work or transferring energy.
• The unit kilowatt is commonly used in various applications, including electricity billing, mechanical systems, and energy consumption measurements.
• For example, the power rating of household appliances like air conditioners, heaters, and washing machines is often given in kilowatts.
• This conversion is fundamental in understanding the energy consumption and efficiency of devices, making it essential for calculations in physics and engineering.

 Additional Information

• 10 J/s
  • This is a smaller unit of power and does not equate to 1 kilowatt. It is equivalent to 10 watts, which is significantly less than 1 kW.
• 100 J/s
  • While closer in value, this is still much smaller than 1 kilowatt. It represents 100 watts, which is one-tenth of a kilowatt.
• 1 J/s
  • This is the definition of 1 watt, the basic unit of power in the SI system. However, it is far smaller than 1 kilowatt, as it is only one-thousandth of a kilowatt.