Question

(1)-Write the energy changes in the following cases.

(a) When a thin piece of metal is struck with a hammer a few times.

(b)- A man working hard to break the rocks with a hammer.​

Answer 1

Answer:

Muscular energy into mechanical energy

Explanation:

Mechanical energy into muscular energy

Answer 2

Metals can be beaten into thin sheets (or flattened) with a hammer. Non-metals break into small pieces when hammered. So, zinc granule will be flattened on beating with a hammer.