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Questions and Answers
Which of the following best describes the conservation of energy?
Which of the following best describes the conservation of energy?
- Energy is only conserved in mechanical systems.
- Energy cannot be created or destroyed, only transformed from one form to another. (correct)
- Energy conservation is not applicable to work done.
- Energy can be created or destroyed depending on the system.
What is the relationship between mechanical energy and work?
What is the relationship between mechanical energy and work?
- Mechanical energy is not affected by work done on a system.
- Work can only be done on non-mechanical systems.
- Work can change the amount of mechanical energy in a system. (correct)
- Mechanical energy and work are completely independent of each other.
In the context of energy conservation, what happens when work is done by a system?
In the context of energy conservation, what happens when work is done by a system?
- The energy in the system remains constant regardless of work done.
- The system gains energy from the surroundings.
- The system loses energy, which is transferred to the surroundings. (correct)
- Work cannot be done by a system in the context of energy conservation.
