Sound — Science STD 9 — Question

For a body performing motion with uniform speed, the distance-time graph is:

The tendency of a body to resist acceleration is called:

Water stored in a dam possesses:

A particle X has 17 protons, 18 neutrons and 18 electrons. This particle is most likely to be:

1. A cation.
2. An anion.
3. A molecule.
4. A compound.

One of the following does not undergo sublimation. This one is:

In Rutherford's α-rays scattering experiment, gold foils are used because of ___________?

Which of the following represents the solubility of sugar in water at 20°C?

Which is not one of the laws of chemical combinations:

The atomic numbers of four elements A, B, C and D are 12, 13, 15 and 3 respectively. The element which cannot form a cation is:

1. A
2. B
3. C
4. D

The smell of hot sizzling food reaches you several meters away, but to get the smell of the cold food you have to go close.Which property of matter does this activity show: