SSLC (English Medium) कक्षा ८ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Can you lift or push a book lying on a table without touching it?

The trees are greenish. They are greenish at the tip too. How does the water rise upward in a tree or plant against the force of gravity?

A ray of the light incident along normal to the mirror ______ its path.

Light is a form of energy and it travels in a straight line.

The SI unit of heat energy is ______.

The water in the black can becomes ______ than that in a white can after exposure to the sun.

Black color is a ______ absorber of heat.

In summer, we prefer light – colored clothes and in winter we usually wear dark – colored clothes.

Match the following

Assertion: Small gaps left between railway lines.
Reason: It allows for the contraction of rails during summer.

You would have noticed some space being left on railway tracks. Why?

Arrange the following in order of decreasing the expansion of heating: Steel, milk, air.

Electricity produced on rubbing is ______.

A tiny particle that rotates around the nucleus of an atom is ______.

Sound cannot travel through ______.

Vibrations in a body produce ______.

Unwanted sounds are called ______.

Longitudinal waves are produced in solids liquids and also in gases.

In which medium the speed of the sound is maximum?

What types of medium are required for sound to travel?