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

In the headlights of motor vehicles, ______ mirrors are used as reflectors.

______ mirrors make things look larger when objects are placed close to them.

Mass is  ______.

The unit is used to measure mass ______.

Mass is a ______ quantity.

Assertion (A): Mass, Length, and Time are fundamental physical quantities.
Reason (R): They are independent of each other.

What is the standard unit of mass?

Write a short note on the following:

Common (beam) balance:

Write a short note on the following:

Physical balance

Write a short note on the following:

Digital balance

Write a short note on the following:

Spring balance:

The Unit of acceleration is ______.

When a body starts from rest, the acceleration of the body after 2 seconds in ______ of its displacement.

The speed of a particle is constant. Will it have acceleration? Justify with an example.

The acceleration of the body that moves with a uniform velocity will be ______.

What is meant by negative acceleration?

m/s² is the unit of ______.

When an object undergoes acceleration ______.

A bus accelerating with 4ms-2 changes its speed from 60ms_1 to a certain value in 5s. The final speed is ______.

A quantity has a value of 16ms-2. It is the ______.