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Question (1)

QN004710

Water droplets were observed on the outer surface of a glass tumbler containing cold water and ice cubes. What was the main observation in Activity 8.3?

(A) Ice cubes disappeared
(B) Water level increased suddenly
(C) Water droplets appeared on the outer surface
(D) The glass changed shape

Correct Answer: C

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Question (2)

QN004711

In Activity 8.3, after adding ice cubes to cold water, the tumbler was left undisturbed for

(A) 1 minute
(B) 3 minutes
(C) 5 minutes
(D) 10 minutes

Correct Answer: C

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Question (3)

QN004712

The tiny drops appearing on the outer surface of a cold glass tumbler are called

(A) vapours
(B) droplets
(C) crystals
(D) bubbles

Correct Answer: B

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Question (4)

QN004713

Which process converts water vapour into liquid water?

(A) Evaporation
(B) Melting
(C) Freezing
(D) Condensation

Correct Answer: D

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Question (5)

QN004714

Which of the following is the exact definition of condensation?

(A) Conversion of water into vapour
(B) Conversion of water vapour into its liquid state
(C) Conversion of liquid water into ice
(D) Conversion of steam into air

Correct Answer: B

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Question (6)

QN004715

According to the chapter, water droplets form when water vapour comes in contact with a

(A) rough surface
(B) metallic surface
(C) cold surface
(D) coloured surface

Correct Answer: C

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Question (7)

QN004716

A student notices water droplets outside a chilled juice bottle. The most likely reason is

(A) leakage from inside
(B) condensation of water vapour in air
(C) melting of the bottle
(D) freezing of air

Correct Answer: B

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Question (8)

QN004717

Which observation supports the idea that water is not seeping through the glass tumbler?

(A) The glass becomes transparent
(B) Water level does not decrease noticeably
(C) Ice cubes become smaller
(D) The tumbler becomes heavier

Correct Answer: B

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Question (9)

QN004718

Dew drops on plants are formed mainly because of

(A) evaporation
(B) condensation
(C) freezing
(D) melting

Correct Answer: B

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Question (10)

QN004719

Dew drops are generally seen more in the

(A) afternoon
(B) evening
(C) morning
(D) midnight only

Correct Answer: C

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Question (1)

Water droplets were observed on the outer surface of a glass tumbler containing cold water and ice cubes. What was the main observation in Activity 8.3?

Explanation:

Link:

Question (2)

In Activity 8.3, after adding ice cubes to cold water, the tumbler was left undisturbed for

Explanation:

Link:

Question (3)

The tiny drops appearing on the outer surface of a cold glass tumbler are called

Explanation:

Link:

Question (4)

Which process converts water vapour into liquid water?

Explanation:

Link:

Question (5)

Which of the following is the exact definition of condensation?

Explanation:

Link:

Question (6)

According to the chapter, water droplets form when water vapour comes in contact with a

Explanation:

Link:

Question (7)

A student notices water droplets outside a chilled juice bottle. The most likely reason is

Explanation:

Link:

Question (8)

Which observation supports the idea that water is not seeping through the glass tumbler?

Explanation:

Link:

Question (9)

Dew drops on plants are formed mainly because of

Explanation:

Link:

Question (10)

Dew drops are generally seen more in the

Explanation:

Link:

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