**6a) state that a force may produce a change in size and shape of a body.**

A force can change both the size and shape of a body. This process is called deformation. Though we will mainly study only elastic deformation, this post covers the basics of elastic deformation as well as plastic deformation.

**Elastic deformation**

Stretching a spring is a form of elastic deformation. You apply a force, and the size of the spring increases. However, once you stop applying the pulling force, the spring returns to its original shape.

**Plastic deformation**

Stretching a spring is elastic deformation. However, you might have noticed that if you apply a force too large on the spring, and stretch it too much, the spring is permanently misshaped. Now, it won't return to its original size. This is an example of plastic deformation.

I am very happy to see this post.

ReplyDeleteIB Standard Level Physics|IB Higher Level Physicsformulas

ReplyDeleteplease

Formulas

ReplyDeleteF=Kx where

F=force

K=spring constant

X=extension

Formula used to find the area of the graph

W=1/2 fx

W=1/2kx(2)

Formula used to find the gradient of the graph as well as spring constant

K= f/x