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

Why did the numbers of tiger and black buck decrease?

The _____ character is used in text formula.

______ is the process of finding an unknown physical quantity by using a standard quantity.

The melting point of pure ice (0° C) is taken as ______ fixed point.

The super conductors are used to levitate trains from the track.

When 5 coulomb of charge, flows through a circuit for 20 seconds. Calculate the current?

A push or pull on an object is called force.

Assertion: Force is defined as a push or pulls acting on a body.
Reason: CGS unit of force is the newton.

Mention the two types of forces.

In ‘tug of war’ when two teams pull equally hard, then what happens?

Does the palm apply any force on the ball, when we place our palm in front of a moving ball?

Briefly explain how we experience a force in our daily life.

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.