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

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Heat is a form of _______.

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The pitch of a sound depends on its ________.

Closeness of two or more measured values is called as ______

Higher order Thinking question

Peeled and unpeeled banana does not look the same. Does that mean peeling banana is a chemical change?

The uncertainty in measurement is called as _______.

If we apply force against the direction of motion of the body, then the body will

Force acting on a given area is called pressure.

Give two examples to verify that a force changes the shape of a body.

Give two examples to verify that a force tends to change the static condition of a body.

Speed of light in air is 3 × 10⁸ m s^–1 and the refractive index of a medium is 1.5. Find the speed of light in the medium.

If you apply some heat energy to a substance, which of the following can take place in it?

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