Question

Why we can easily move our hand in air but to do the same through a block of wood we need a karate expert?

Answer 1

HERE IS YOUR ANSWER ⤵

we can easily move our hand in air...

BECAUSE there are large intermolecular spaces and less force of attraction between the particles of gas.



but to do same through a block of wood we need karate expert ......

BECAUSE there are small intermolecular spaces and more force of attraction between the particles of a solid substance.

Hope this HELPS U.....^_^✌❤

Answer 2

Air is a gas, it has more space in between particles. But solid block of wood is rigid, hence it is difficult to move our hands through it.