Question

3. Give reason

d) we can easily move our hand in the air but to do the same through a solid block of wood we need a karate expert ​

Answer 1

Answer:

We can easily move our hand in the air but to do the same through a solid block of wood we need a karate expert because, in air, there is a less force of attraction between the particles. So, very less amount of external force can break it.

But in the case of solid, the force of attraction is very strong and the molecular space is so high. Hence a large amount of force is required to break it.

HOPE THIS HELPS YOU............

PLZ MARK AS BRAINLEST........

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.