Physics for IGCSE & O level - Forces And Pressure (Section 6 - No. 11)
When a spring is stretched, what is the relationship between the force and its extension?
They are inversely proportional.
They are directly proportional within the elastic limit.
They have no relationship.
The extension is always greater than the force.
توضیح
Within the elastic limit, they are directly proportional (Hooke's law).