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Question (31)

QN0014542

If a material is placed in the category “See through partially”, it should be called ________.

(A) opaque
(B) transparent
(C) translucent
(D) solid

Correct Answer: C

Explanation:

Translucent materials allow partial visibility.

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Question (32)

QN0014543

Which of the following would be placed closest to the “Cannot see through at all” end?

(A) Glass pane
(B) Clear water
(C) Wooden board
(D) Transparent bottle

Correct Answer: C

Explanation:

Wooden boards are opaque.

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Question (33)

QN0014544

During the activity, objects were arranged from “See through clearly” to “Cannot see through at all”. Which order is correct?

(A) Transparent → Translucent → Opaque
(B) Opaque → Transparent → Translucent
(C) Translucent → Opaque → Transparent
(D) Opaque → Translucent → Transparent

Correct Answer: A

Explanation:

Visibility decreases from transparent to translucent to opaque.

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Question (34)

QN0014545

Which property makes glass useful for windows?

(A) It is opaque.
(B) It is transparent.
(C) It is soft.
(D) It absorbs all light.

Correct Answer: B

Explanation:

Transparency allows us to see outside.

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Question (35)

QN0014546

A child sees only a blurred image through a material. The material is likely to be ________.

(A) transparent
(B) opaque
(C) translucent
(D) metallic

Correct Answer: C

Explanation:

Translucent materials form blurred images.

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Question (36)

QN0014547

Why is it unsafe to look at the Sun continuously, even through an object?

(A) It can harm the eyes.
(B) It changes colour.
(C) It makes objects transparent.
(D) It melts glass instantly.

Correct Answer: A

Explanation:

Continuous viewing of the Sun can damage eyesight.

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Question (37)

QN0014548

Which option correctly matches the type of material with how objects appear through it?

(A) Transparent — not visible
(B) Opaque — clearly visible
(C) Translucent — partly visible
(D) Opaque — partly visible

Correct Answer: C

Explanation:

Objects are only partly visible through translucent materials.

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Question (38)

QN0014549

A school wants a material for a display case so that all items inside can be seen clearly. Which material should be selected?

(A) Wood
(B) Glass
(C) Cardboard
(D) Metal

Correct Answer: B

Explanation:

Glass is transparent and allows clear viewing.

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Question (39)

QN0014550

Which conclusion can be drawn from the “Let us colour the world!” activity?

(A) Transparent coloured materials can change the appearance of colours seen through them.
(B) Transparent materials always make objects invisible.
(C) Opaque materials help us see clearly.
(D) Wood changes the colour of light.

Correct Answer: A

Explanation:

Coloured transparent materials affect the colours we see.

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Question (40)

QN0014551

Which material type is best described by the statement “You can see through it clearly”?

(A) Opaque
(B) Translucent
(C) Transparent
(D) Solid

Correct Answer: C

Explanation:

Transparent materials allow clear visibility through them.

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Question (31)

If a material is placed in the category “See through partially”, it should be called ________.

Explanation:

Link:

Question (32)

Which of the following would be placed closest to the “Cannot see through at all” end?

Explanation:

Link:

Question (33)

During the activity, objects were arranged from “See through clearly” to “Cannot see through at all”. Which order is correct?

Explanation:

Link:

Question (34)

Which property makes glass useful for windows?

Explanation:

Link:

Question (35)

A child sees only a blurred image through a material. The material is likely to be ________.

Explanation:

Link:

Question (36)

Why is it unsafe to look at the Sun continuously, even through an object?

Explanation:

Link:

Question (37)

Which option correctly matches the type of material with how objects appear through it?

Explanation:

Link:

Question (38)

A school wants a material for a display case so that all items inside can be seen clearly. Which material should be selected?

Explanation:

Link:

Question (39)

Which conclusion can be drawn from the “Let us colour the world!” activity?

Explanation:

Link:

Question (40)

Which material type is best described by the statement “You can see through it clearly”?

Explanation:

Link:

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