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# Question Bank Solutions for ICSE Class 8 - CISCE - Physics

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Fill in the blank

The smallest unit of matter that exists freely in nature is called ...........

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Fill in the blank

Intermolecular space is maximum in ........ less in .......... and the least in ....

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Fill in the blank

Intermolecular force of attraction is maxiumum in ..........less in .......and the least in ..........

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Match the following

 Column A Column B (a) Molecules (i) Water boils (b) 100° C (ii) Evaporation (c) 0° C (iii) Changes from solid to gas (d) At all temperatures (iv) Matter (e) Camphor (v) Water freezes
[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Select the correct alternative

The inter-molecular force is maximum in

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Select the correct alternative

The inter-molecular space is maximum in

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Select the correct alternative

The molecules can move freely anywhere in

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Select the correct alternative

The molecules can move freely anywhere in

1. gases
2. liquids
3. solids
4. none of the above
[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Define the term matter. What is it composed of ?

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

What do you mean by the inter-molecular spaces ? How do they vary in different states of matter ?

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Which of the following is correct ?

Solids have definite shape and definite volume.

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Which of the following is correct?

Liquids have definite volume but do not have definite shape.

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Which of the following is correct?

Gases have definite volume but no definite shape.

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Which of the following is correct?

Liquids have definite shape and definite volume.

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Name the processes involved in two cases.

[0.01] Matter
Chapter: [0.01] Matter
Concept: Kinetic Theory of Matter

Write true or false

The density of a piece of brass will change by changing its size or shape.

[0.02] Physical Quantities and Measurement
Chapter: [0.02] Physical Quantities and Measurement
Concept: Measurement of Density of Irregular Solids Using Eureka Can

Write true or false

Relative density of water is 1.0.

[0.02] Physical Quantities and Measurement
Chapter: [0.02] Physical Quantities and Measurement
Concept: Measurement of Density of Irregular Solids Using Eureka Can

Fill in the blank

Mass = density x .........

[0.02] Physical Quantities and Measurement
Chapter: [0.02] Physical Quantities and Measurement
Concept: Measurement of Density of Irregular Solids Using Eureka Can

Fill in the blank

Density of water is .......Kg m-3.

[0.02] Physical Quantities and Measurement
Chapter: [0.02] Physical Quantities and Measurement
Concept: Measurement of Density of Irregular Solids Using Eureka Can

True and False

The S.I. unit of force is kgf.

[0.03] Force and Pressure
Chapter: [0.03] Force and Pressure
Concept: Turning Effect of Force (Moment of Force)
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