Energy Consumption (HSC SSCE Mathematics Standard): Flashcards

Ability to perform work or cause change

Joule ($\text{J}$)

Rate energy is produced or used over time

Watt ($\text{W}$)

$1 \text{ J/s}$

Kilowatt-hour ($\text{kWh}$)

$\text{Power (kW)} \times \text{Time (hours)}$

$3.6 \text{ MJ}$

More energy efficient

Energy ($\text{kWh}$) × Rate ($/kWh)