Required Practical: Force & Extension Flashcards
What is the purpose of the required practical activity “Force and Extension”?
The purpose is to investigate the relationship between force and extension for a spring.
What materials are required for the “Force and Extension” practical activity?
Materials include:
a spring with loops at each end
a meter ruler
a suitable pointer (such as a splint and tape)
a weight stack
a clamp stand
clamps and bosses
an object to weigh.
What should be done before conducting the practical activity with new springs?
New springs should be extended under a suitable load for a short while.
How is the extension of the spring measured during the practical activity?
The extension is measured as the increase in length from the original length of the spring.
What is the relationship between force and extension described by in the required practical activity?
The relationship between force and extension is described by Hooke’s Law.
State Hooke’s Law
For an object behaving elastically, the extension is directly proportional to the force applied, provided that the limit of proportionality is not exceeded.
