Class 9 Physics Sound Notes for CBSE Chapter 12
The disturbance is handed over from one particle to another particle of the medium without the actual movement of the particles of the medium.
The disturbance is handed over from one particle to another particle of the medium without the actual movement of the particles of the medium.
Fluid is a substance that flows under the action of an applied force and does not have a shape of its own. For example, liquids and gases. They take the shape of the container in which they are stored.
Besides developing the three laws of motion, Sir Issac Newton also examined the motion of the heavenly bodies – the planets and the moon.
INTRODUCTION In everyday language, the word work is used to …
A force cannot be seen. A force can be judged only by the effects which it can produce in various bodies (or objects) around us.
Rest and Motion Definition            Rest and motion are relative …