Question

A. answer in one word
1. the ability of a body to do work.______

2. a simple machine consists of wear with a grooved rim ine whitch a rop aur chain can run.__________

3 . An inclined plane wound around a rod spirally making a number of turns on it ._______

4.The basic mechanical devices that we use in our everyday lives _______.

5. the ratio of work done by machine to the work done on the machine______​

Answer 1

Answer:

1ans Energy hope its help you

Answer 2

Answer:

1. Energy

3. screw

5. efficiency of a machine