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Question 2 of 25
A student spent 10 minutes cleaning her car with a 500 W vacuum cleaner.
How much energy, in joules, did the vacuum cleaner use?
○ A. 1,800,000 J
○ B. 300,000 J
○ C. 5000 J
○ D. 30,000 J
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Answer :

betit47135
The correct answer is B. 300,000 J.

The energy used by the vacuum cleaner can be calculated using the formula:

Energy (in joules) = Power (in watts) x Time (in seconds)

First, convert the time from minutes to seconds:

10 minutes x 60 seconds/minute = 600 seconds

Then, plug in the values:

Energy = 500 W x 600 s = 300,000 J

So, the vacuum cleaner used 300,000 joules of energy.

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