2-6 What is power?
OBJECTIVE: Explain how to measure power.
Key Terms
power: amount of work done per unit of time
watt: SI unit of power; equal to 1 J/s
Lesson Summary
• The amount of work done per unit of time is called power.
• Power is equal to work divided by time.
• The SI unit of power is the watt (W).
• Large amounts of power are measured in kilowatts (kW).
Key Terms
power: amount of work done per unit of time
watt: SI unit of power; equal to 1 J/s
Lesson Summary
• The amount of work done per unit of time is called power.
• Power is equal to work divided by time.
• The SI unit of power is the watt (W).
• Large amounts of power are measured in kilowatts (kW).
Resources: