A $100$ watt light bulb operates for $1$ hour. How many $J$ (joules) of energy does it consume during that time?

• A. $6000$ joules
• B. $360000$ joules
• C. $100$ joules
• D. $1000$ joules

Answer: (B)

Verified step by step guidance

1. Identify the given quantities: power of the light bulb \(P = 100\) watts and time of operation \(t = 1\) hour.
2. Convert the time from hours to seconds because the standard unit of time in physics is seconds. Use the conversion \$1 \text{ hour} = 3600 \text{ seconds}$.
3. Recall the relationship between energy, power, and time: \(E = P \times t\), where \(E\) is energy in joules, \(P\) is power in watts, and \(t\) is time in seconds.
4. Substitute the values into the formula: \(E = 100 \, \text{W} \times 3600 \, \text{s}\).
5. Calculate the product to find the total energy consumed in joules.