Question

5. Liquids are less compressible than gases.
. Match the following.
1. A molecule is composed of
2. Ice, water and water vapour
3. An atom
(a) does not exist in free state
(b) can vibrate only from their mean position
(c) atoms
(d) are the three states of water
(e) occupy space
4.
Gases
5.
The molecules of a solid
Part II​

Answer 1

Answer:

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Selina Concise Class 6 Physics Solution Chapter No. 1- ‘Matter’ For ICSE Board Students.

(1) Write true or false for each statement:

(a) The molecules of each substance are identical

Ans:- (F)

(b) The inter – molecules forces are effective at all distance between the two molecules

Ans:- (F)

(c) The molecules in a substance are in random motion

Ans:- (T)

(d) In a gas, the molecules can move anyone in shape.

Ans:- (T)

(e) The liquids are less viscous than the gases

Ans:- (F)

(2) Fill in the blanks:

(a) All the molecules of a substance are ………………..

Ans:- Identical

(b) The inter-molecular spacing is ……………. In solids …………. In liquids and ……………. In gases

Ans:- Least, more, still more.

(c) The molecular motion liquids and gas is in …………. Path.

Ans:- zig-zag

(d) In a solid, the molecules…………….. but they remain at their fixed positions.

Ans:- vibrate on either side

(e) the inter- molecules forces ate the weakest in ……………

(f) a solid extra pressure …………..

Ans:- gases

(g) The Gases are ………………. dense.

Ans:- least

(f) A solid is …………….. rigid

Ans:- most

I hope this helps you

Answer 2

Answer:

Explanation:

       QUESTION                                               ANSWER

1. A molecule is composed of                          (c) atoms

2. Ice, water and water vapour                        (d) are the three states of water

3. An atom                                                        (a) does not exist in free state

4. Gases                                                              (e) occupy space

5. The molecules of a solid             (b) can vibrate only from their mean position