Matter in Our Surrounding Test

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Matter in Our Surrounding Test - 13

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Weekly Quiz Competition

Question 1
1 / -0

____i___ has no fixed shape or volume, whereas ____ii____ has a fixed volume but no fixed shape.
Which alternative completes the given statement?

A

i ii

Carbon dioxide olive oil

B

i ii

Olive oil rock

C

i ii

Rock paper

D

i ii

Paper carbon dioxide

Solution

Carbon dioxide is a gas. The constituent particles of a gas are free to move anywhere in space. The positions of the particles are not fixed. Hence, carbon dioxide has neither a definite shape nor a definite volume.

Olive oil is a liquid. It has a fixed volume but has no fixed shape. It takes the shape of the container in which it is poured.

Rock and paper are solids. The constituent particles of a solid are closely packed and are fixed in their positions. Hence, they have a fixed shape and a fixed volume.

Hence, the correct answer is option A.

Question 2

1 / -0

Use the following information to answer the next question.

The Kelvin temperature scale was proposed in 1848 by the British mathematician and physicist William Thomson Kelvin. In the Kelvin scale, there is a point of absolute zero (0 K) at which the molecular energy is the minimum. Temperatures do not exist below this point. The temperature corresponding to the absolute zero in the Celsius scale is −273 ºC.

What is the boiling point of water in Kelvin?

100 K

173 K

273 K

373 K

Solution

The boiling point of water in the Celsius scale and the Kelvin scale is 100ºC and 373 K respectively.

The correct answer is D.

Question 3
1 / -0

The water vapours present in the atmosphere form clouds by the process of

A
condensation

B
evaporation

C
freezing

D
Melting

Solution

Condensation is the process in which a gaseous substance changes into its liquid or solid state. Condensation of water vapour takes place when the temperature is low. The water vapours present in the atmosphere condense to form clouds.

The correct answer is A.
Question 4
1 / -0

Use the following information to answer the next question.

Tyler takes butter out of the refrigerator and keeps it on the table for some time. He finds that the state of butter changes from solid to liquid.

The reversible process by which the state of butter can again be changed to solid is

A
melting

B
freezing

C
evaporation

D
condensation

Solution

Freezing is the process in which a liquid turns into its solid state as a result of a decrease in temperature. Hence, the state of butter can again be changed to solid by freezing it.

The correct answer is B.
Question 5
1 / -0

Which of the following physical processes involves evaporation?

A
Formation of ice

B
Drying of clothes

C
Formation of fog

D
Melting of butter

Solution

Evaporation involves the change in state of a substance from its liquid form to its gaseous form. The process of drying of clothes involves evaporation. Water gets evaporated from the wet clothes because of the heat of the sun.

The correct answer is B.
Question 6
1 / -0

The liquid state of matter has

A
a definite volume but indefinite shape

B
an indefinite volume but definite shape

C
a definite volume as well as definite shape

D
an indefinite volume as well as indefinite shape

Solution

The shape of liquids depends on the shape of the containers they are kept in. They have a definite volume but indefinite shape.

The correct answer is A.
Question 7
1 / -0

Which of the following statements about the properties of solids is false?

A
Their density is more than that of gases.

B
They are less compressible than gases.

C
They have a definite shape and size.

D
Their particles are loosely packed.

Solution

The constituent particles of solids are closely packed. The constituent particles of gases are loosely packed.

The correct answer is D.

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Re-Attempt Weekly Quiz Competition

i	ii
Carbon dioxide	olive oil

i	ii
Olive oil	rock

i	ii
Rock	paper

i	ii
Paper	carbon dioxide

Matter in Our Surrounding Test - 13

Result

Matter in Our Surrounding Test - 13

Score

-

Rank

-

SHARING IS CARING

Question 1

i ii Carbon dioxide olive oil

i ii Olive oil rock

i ii Rock paper

i ii Paper carbon dioxide

Solution

Question 2

100 K

173 K

273 K

373 K

Solution

Question 3

condensation

evaporation

freezing

Melting

Solution

Question 4

melting

freezing

evaporation

condensation

Solution

Question 5

Formation of ice

Drying of clothes

Formation of fog

Melting of butter

Solution

Question 6

a definite volume but indefinite shape

an indefinite volume but definite shape

a definite volume as well as definite shape

an indefinite volume as well as indefinite shape

Solution

Question 7

Their density is more than that of gases.

They are less compressible than gases.

They have a definite shape and size.

Their particles are loosely packed.

Solution

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i ii

Carbon dioxide olive oil

i ii

Olive oil rock

i ii

Rock paper

i ii

Paper carbon dioxide