SSLC (English Medium) इयत्ता ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Time is a vector quantity.

Motion & rest are relative terms.

Give reasons why:

a single nail pricking the body is painful when compared to lying on a bed of nails.

Give reasons why:

cutting edges of knives and axes are sharpened.

Give reasons why:

heavy trucks are fitted with 6 to 8 wheels

In petrol bunks, in what unit is tire pressure measured?

What is an Artisan aquifer?

Intermolecular forces are stronger in ______.

Fluids in general are ______.

Scuba divers wear special suits to withstand ______.

It is easy to compress a gas whereas liquids are ______.

The net force in a particular direction is called ______.

All flowing substances, both liquids, and gases are called ______.

The pressure in mines is ______ than the sea level.

Hot air is ______ dense than ordinary air. 

The shape and size of the solids do not easily change.

Upthrust = weight of the fluid displaced – apparent weight of the object.

What is the SI unit of pressure?

What happens when pressure is increased in solids?

Assertion (A): Air gets thinner with increasing altitude.
Reason (R): The atmospheric pressure increases as we go up in mountains.