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

Which of the following substances will absorb more heat energy?

The process of converting a liquid into a solid is called ________.

The amount of heat gained by a substance is equal to the product of its mass and latent heat.

Define one calorie.

Why does the bottom of a lake not freeze in severe winter though the surface is all frozen?

Water can conduct electricity.

Give a reason for the following.

One should not use an umbrella while crossing an open field during thunderstorm.

Sound waves travel very fast in

The amplitude of the sound wave decides its

Sound travels in the form of ______.

High-frequency sounds that cannot be heard by you are called _______.

Match the following.

Consider the statement given below and choose the correct option.

Assertion: When lightning strikes, the sound is heard a little after the flash is seen.

Reason: The velocity of light is greater than that of the sound.

Give an example to show that light travels faster than sound?

A sound wave travels 2000 m in 8 s. What is the velocity of the sound?

The property which allows the metals to be hammered into their sheets is ______.

Name the metals that are used in jewellery.

Why wires cannot be drawn from materials such as stone or wood?

Burning of paper is a ______ change.

Limestone contains ______ mainly.