Multiple Choice
What is most likely to happen when moist air is forced up the windward side of a mountain?
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20. Heat and Temperature
Heat Transfer
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
During exercise, what percentage of the energy you use is typically transformed into heat?
A
25%
B
10%
C
60%
D
80%
Verified step by step guidance1
Understand the concept of energy transformation during exercise: When you exercise, your body converts chemical energy from food into mechanical energy for movement. However, not all of this energy is used for movement; a significant portion is transformed into heat.
Recognize the efficiency of human muscles: Human muscles are not 100% efficient in converting energy into work. Typically, only a small percentage of the energy is used for mechanical work, while the rest is dissipated as heat.
Identify the typical percentage of energy converted to heat: In most physical activities, about 80% of the energy is transformed into heat, while the remaining 20% is used for mechanical work.
Consider the implications of this energy transformation: The heat produced during exercise is why your body temperature rises, and you may sweat to cool down.
Relate this to the options given: Among the options provided (25%, 10%, 60%), the closest to the typical 80% of energy transformed into heat is not listed, indicating a need to understand the context of energy efficiency in human physiology.
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