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A light bulb uses 60 W of power. How much energy does it consume in 1 hour?
A light bulb uses 60 W of power. How much energy does it consume in 1 hour?
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Practice Questions
1 question
Q1
A light bulb uses 60 W of power. How much energy does it consume in 1 hour?
3600 J
216000 J
60000 J
180000 J
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Energy consumed can be calculated using E = P * t. Here, P = 60 W and t = 1 hour = 3600 seconds. Thus, E = 60 W * 3600 s = 216000 J.
Questions & Step-by-step Solutions
1 item
Q
Q: A light bulb uses 60 W of power. How much energy does it consume in 1 hour?
Solution:
Energy consumed can be calculated using E = P * t. Here, P = 60 W and t = 1 hour = 3600 seconds. Thus, E = 60 W * 3600 s = 216000 J.
Steps: 6
Show Steps
Step 1: Understand that power (P) is the rate at which energy is used. In this case, the light bulb uses 60 watts (W) of power.
Step 2: Know that energy (E) can be calculated using the formula E = P * t, where E is energy, P is power, and t is time.
Step 3: Convert the time from hours to seconds. Since 1 hour is equal to 3600 seconds, we will use t = 3600 seconds.
Step 4: Substitute the values into the formula. Here, P = 60 W and t = 3600 s.
Step 5: Calculate the energy consumed: E = 60 W * 3600 s.
Step 6: Perform the multiplication: E = 216000 joules (J).
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