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

What is absolute zero?

Differentiate between the three temperature scales.

______ is known as an absolute scale.

What is the relation between calories and Joule?

Convert the following

100°F to °C

Convert the following

40°C to Fahrenheit (°F)

Convert the following

35°C to Kelvin

Convert the following

80°K to °C

What does the intensity of sound hear at a place depend on?

______ of sound depends on the amplitude of the wave.

The loudness of sound depends on the ______ of the sound wave.

Loudness equal to (or) greater than ______ can be painful to the ear.

Assertion: As the amplitude of sound increases, the loudness of sound decreases.
Reason: The loudness of sound depends on the amplitude of the wave.

Name the distinguishing factors of sound.

Define: 

Intensity

Define:

Timbre

What are the factors that the intensity of Sound depends upon?

Water is a ______.

When two or more elements combine together they form ______.

The elements that follow lanthanum are called ______.