If we break a piece of chalk, a wooden blocks and an iron nail, we will observe that it is very difficult to break an iron nail, wooden block requires lesser force, while chalk can be broken easily. What can be concluded from these observations
Dear student,
Molecules are held together by force of attraction among the particles. This force of cohesion keeps them intact and the strength of force varies from substance to substance.
The activity demonstrates that the force of attraction among chalk is the least, so it can be overcome easily and hence broken easily.
Whereas this force of attraction is more in wooden block and the maximum in an iron nail. Due to this we have to increase the impact of applied force to break it.
Regards
Molecules are held together by force of attraction among the particles. This force of cohesion keeps them intact and the strength of force varies from substance to substance.
The activity demonstrates that the force of attraction among chalk is the least, so it can be overcome easily and hence broken easily.
Whereas this force of attraction is more in wooden block and the maximum in an iron nail. Due to this we have to increase the impact of applied force to break it.
Regards