845PhysicsMedium
A wire is stretched by a force F which causes an extension 1. The energy stored in the wire is____________________?
AThe weight of the wire is negligible
BThe cross sectional area of the wire remains constant
CThe wire is not stretched beyond its elastic limit
DThe extension of the wire is proportional to the force applied
Correct answer
D. The extension of the wire is proportional to the force applied
Explanation
The extension of the wire is proportional to the force applied is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.