Tissues — Science STD 9 — Question

Nucleus is not present in-

The latent heat of fusion of ice is:

If a cricket ball hits you, it will hurt much more than a tennis ball would, because :

The characteristics of sound which enables us to distinguish two musical sounds coming from different sources but having the same frequency and loudness is:

Which of the following process/ processes release heat?

1. Condensation.
2. Vaporization.
3. Freezing.
4. Melting.

Which of the following action describes pushing by a body:

The atomic number of an element is 13 and its mass, mass number is 27. The correct order representing the number of electrons, protons and neutrons respectively in this atom is:

The best evidence for the existence and movement of particles in liquids was provided by:

1. John Dalton.
2. Ernest Rutherford.
3. J.J. Thomson.
4. Robert Brown.

A heavy object has ---- potential energy than a lighter one:

Which of the following is an incorrect match for cellular sap?