motion

force and law of motion

gravitation

work and energy

sound

law of conservation of momentum

newton second law

newtons third law of motion

to study the effect of thurst on a body in relaton to its area of contact with another bod

to show the excistence of uperthrust or boyan force

verification of archimedies principle

newtons law of gravitation

positive and negative work

mathematical expression of kinetic energy

formation of circular ripples on water

the reflected lights on the wall moves up and down on producing loud sounds

propagatipon of sound

to prove that sound need medium for their propogation

to show the reflection of sound

Sonar

practical application of reflection of sound