If an appliance uses 0.5 kilowatt hours of energy, how many joules of energy does it consume?

• A. 1.8 x 10⁶ joules.
• B. 1.8 x 10³ joules.
• C. 3.6 x 10⁶ joules.
• D. 3.6 x 10³ joules.

Answer: (A)