Gravitation — Science STD 9 — Question

State whether the following statements are true or false:
Salt and water can be recovered from an aqueous salt solution by the process of evaporation.

What kind of energy is possessedby the following?

A compressed spring.

What is the maximum number of electrons which can be accommodated in the:
Innermost shell of an atom?

How many watts equal one horse power?

Give one example where:
A force moves a stationary body.

What is the:
Common unit of temperature.

Name the scientist who gave atomic theory of matter.

Compare a proton and a neutron in respect of mass and charge.

During a free fall, will heavier objects accelerate more than lighter ones?

Name two gases which are supplied in compressed form in homes and hospitals.