Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 8th
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SSLC (English Medium) Class 8th - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

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Science
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Fill in the blank

Heat is a form of _______.

[0.04] Heat
Chapter: [0.04] Heat
Concept: Heat and Its Unit

Fill in the blank.

The pitch of a sound depends on its ________.

[0.06] Sound
Chapter: [0.06] Sound
Concept: Sound
Distinguish between music and noise.
[0.06] Sound
Chapter: [0.06] Sound
Concept: Sound

Closeness of two or more measured values is called as ______

[0.01] Measurement
Chapter: [0.01] Measurement
Concept: Measurements

Higher order Thinking question

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

[0.1] Changes Around Us
Chapter: [0.1] Changes Around Us
Concept: Classification of Change: Chemical Changes

The uncertainty in measurement is called as _______.

[0.01] Measurement
Chapter: [0.01] Measurement
Concept: Measurements

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

[0.02] Force and Pressure
Chapter: [0.02] Force and Pressure
Concept: Force

Force acting on a given area is called pressure.

[0.02] Force and Pressure
Chapter: [0.02] Force and Pressure
Concept: Force

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

[0.02] Force and Pressure
Chapter: [0.02] Force and Pressure
Concept: Force

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

[0.02] Force and Pressure
Chapter: [0.02] Force and Pressure
Concept: Force

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.

[0.03] Light
Chapter: [0.03] Light
Concept: Light

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

[0.04] Heat
Chapter: [0.04] Heat
Concept: Heat and Its Unit

Which of the following substances will absorb more heat energy?

[0.04] Heat
Chapter: [0.04] Heat
Concept: Heat and Its Unit

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

[0.04] Heat
Chapter: [0.04] Heat
Concept: Heat and Its Unit

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

[0.04] Heat
Chapter: [0.04] Heat
Concept: Heat and Its Unit

Define one calorie.

[0.04] Heat
Chapter: [0.04] Heat
Concept: Heat and Its Unit

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

[0.04] Heat
Chapter: [0.04] Heat
Concept: Heat and Its Unit

Water can conduct electricity.

[0.05] Electricity
Chapter: [0.05] Electricity
Concept: Electricity

Give a reason for the following.

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

[0.05] Electricity
Chapter: [0.05] Electricity
Concept: Electricity

Sound waves travel very fast in

[0.06] Sound
Chapter: [0.06] Sound
Concept: Sound
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