SSLC (English Medium) Class 9 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Give an account of different types of fish ponds used for rearing fishes.

The Kelvin is the basic unit of ______.

Match the following:

Match the following:

Mention the uses of the velocity-time graph.

The area under the v-t graph represents a physical quantity that has the unit.

Which of the following can determine the acceleration of a moving object.

A straight line parallel to the x-axis in the velocity-time graph represents the object moving in ______.

From the v-t graph, ______ can be calculated.

Slope of the velocity-time graph gives ______.

The area of the velocity-time graph gives the displacement of the body.

What is a lactometer? Explain its principle and work.

Petroleum-based products float on the surface of the water. This is due to their low ______.

1. volume
2. density
3. specific gravity
4. viscosity

The density of the substance is the ______ of a given substance.

Write the SI unit & symbol for density?

An AC generator is provided with ______ slip rings that rotate with the coil.

What is the concept of temperature?

Give reasons why –

a steam burn is more damaging than a burn caused by boiling water at the same temperature.

Give reasons why –

an igloo is built as a winter shelter

Give reasons why –

gaps are left between railway tracks