What are fundamental units and derived units?

What is meant by Collinear vector? Explain them.

What is Centripetal force? Write the expression for it?

What is mechanical energy? What are its two types?

What is rolling motion?

What are the points to be noted to study about gravitational field?

Which is more elastic steel or rubber? Explain.

Draw and explain the distribution of radiation intensity.

State and derive the perfect or ideal gas equation?

Derive an expression for PE and KE in SHM, and deduced the graphical representation.