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

The solid angle is measured in _______.

The coldness or hotness of a substance is expressed by _______.

_______ is used to measure electric current.

One mole of a substance contains _______ atoms or molecules.

The intersection of two straight lines gives us _______.

Temperature is a measure of total kinetic energy of the particles in a system.

If one coulomb of charge is flowing in one minute, it is called ‘ampere’

Amount of substance gives the number of particles present in a substance.

Angle formed at the top of a cone is an example for ‘plane angle’

Match the following.

Consider the statement given below and choose the correct option

Assertion: Electric current, amount of substance, luminous intensity are the fundamental physical quantities.

Reason: They are independent of each other.

Consider the statement given below and choose the correct option.

Assertion: Radian is the unit of solid angle.

Reason: One radian is the angle subtended at the center of a circle by an arc of length equal to its radius.

Give the name of the instrument used for the measurement of temperature.

Name the three scales of temperature.

What do you mean by luminous intensity?

Define – mole.

What are the differences between plane angle and solid angle?

Nature of the images formed by a convex mirror is _______.

The electrification of two different bodies on rubbing is because of the transfer of

______ takes place by rubbing objects together.