A $100\bullet W$ light bulb operates for $1 \mathrm{hour}$. How many $J$ of energy does it consume during that time?

• A. $6000$ joules
• B. $360000$ joules
• C. $100000$ joules
• D. $3600$ joules

Answer: (B)

Verified step by step guidance

1. Identify the given quantities: power of the light bulb \(P = 100\ \text{W}\) and time of operation \(t = 1\ \text{hour}\).
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.