Physics for IGCSE & O level - Forces And Pressure (Section 1 - No. 5)
In a spring, what is the limit of proportionality?
The point beyond which the spring is permanently stretched.
The point where the spring starts to compress.
The point where the spring is no longer elastic.
All of the above
คำอธิบาย
The limit of proportionality is the point where the spring's extension is no longer proportional to the load.