A student walks up 50 flights of stairs to gain K joules of potential energy. Wh
ID: 1796616 • Letter: A
Question
A student walks up 50 flights of stairs to gain K joules of potential energy. What amount of energy was transformed during this activity, and what was its source?
more than K joules of chemical energy that was stored in the student's body
slightly less than K joules of chemical energy that was stored in the student's body
exactly K joules of chemical energy that was stored in the student's body
exactly K joules of mechanical energy that was stored in the staircase
more than K joules of chemical energy that was stored in the student's body
slightly less than K joules of chemical energy that was stored in the student's body
exactly K joules of chemical energy that was stored in the student's body
exactly K joules of mechanical energy that was stored in the staircase
Explanation / Answer
exactly K joules of chemical energy that was stored in the student's body
This can be explained from law conservation of energy.
When students gains potential energy he has to loss energy.
The loss of energy is cmeical energy in his body.
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