Tissues — Science STD 9 — Question

If the temperature of an object is 268K, it will be equivalent to:

Which scientist proposed the concept of atomic mass:

You have to push with 15N of force to move it 10 meters. How much work do you do?

Match the atomic numbers 4, 14, 8, 15, and 19 with a non-metal of valency 4.

The growing of different crops on a piece of land in pre-planned succession is called: 

The weight of an object at the centre of the earth of radius R is:

The value of g on moon in 1/ 6 th of the value of g on earth. A man can jump 1.5m high on the earth. He can jump on the moon up to a height of:

On converting 25°C, 38°C and 66°C to Kelvin scale, the correct sequence of temperature will be:

A particle is moving in a circular path of radius r. The displacement after half a circle would be:

While opening a tap with two fingers, the forces applied are :