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Question (11)

QN0029183

A cube has volume 125 cm³ and mass 250 g. Its density is:

(A) 0.5 g/cm³
(B) 1 g/cm³
(C) 2 g/cm³
(D) 4 g/cm³

Correct Answer: C

Explanation:

Density = 250 ÷ 125 = 2 g/cm³.

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Question (12)

QN0029184

A liquid has mass 300 g and volume 150 cm³. What is its density?

(A) 0.5 g/cm³
(B) 1 g/cm³
(C) 1.5 g/cm³
(D) 2 g/cm³

Correct Answer: D

Explanation:

Density = 300 ÷ 150 = 2 g/cm³.

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Question (13)

QN0029185

Which of the following has the lowest density?

(A) 50 g in 25 cm³
(B) 40 g in 80 cm³
(C) 120 g in 60 cm³
(D) 150 g in 75 cm³

Correct Answer: B

Explanation:

Density = 40 ÷ 80 = 0.5 g/cm³.

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Question (14)

QN0029186

A substance has density 0.8 g/cm³ and volume 200 cm³. Its mass is:

(A) 120 g
(B) 140 g
(C) 160 g
(D) 180 g

Correct Answer: C

Explanation:

Mass = 0.8 × 200 = 160 g.

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Question (15)

QN0029187

Density helps us compare:

(A) Colour of substances
(B) Compactness of matter
(C) Shape of substances
(D) Temperature of substances

Correct Answer: B

Explanation:

Density indicates how closely matter is packed.

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Question (16)

QN0029188

An object has mass 360 g and density 3 g/cm³. Its volume is:

(A) 100 cm³
(B) 110 cm³
(C) 120 cm³
(D) 130 cm³

Correct Answer: C

Explanation:

Volume = 360 ÷ 3 = 120 cm³.

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Question (17)

QN0029189

Which sample has the greatest density?

(A) 300 g in 200 cm³
(B) 200 g in 100 cm³
(C) 240 g in 160 cm³
(D) 150 g in 120 cm³

Correct Answer: B

Explanation:

Density = 200 ÷ 100 = 2 g/cm³.

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Question (18)

QN0029190

A block of metal has mass 500 g and volume 250 cm³. Calculate its density.

(A) 1 g/cm³
(B) 1.5 g/cm³
(C) 2 g/cm³
(D) 2.5 g/cm³

Correct Answer: C

Explanation:

Density = 500 ÷ 250 = 2 g/cm³.

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Question (19)

QN0029191

If the mass of a substance doubles while volume remains the same, its density:

(A) halves
(B) doubles
(C) remains unchanged
(D) becomes zero

Correct Answer: B

Explanation:

Density is directly proportional to mass when volume is constant.

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Question (20)

QN0029192

A material occupies 80 cm³ and has density 2.5 g/cm³. Its mass is:

(A) 180 g
(B) 190 g
(C) 200 g
(D) 210 g

Correct Answer: C

Explanation:

Mass = 2.5 × 80 = 200 g.

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Question (11)

A cube has volume 125 cm³ and mass 250 g. Its density is:

Explanation:

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Question (12)

A liquid has mass 300 g and volume 150 cm³. What is its density?

Explanation:

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Question (13)

Which of the following has the lowest density?

Explanation:

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Question (14)

A substance has density 0.8 g/cm³ and volume 200 cm³. Its mass is:

Explanation:

Link:

Question (15)

Density helps us compare:

Explanation:

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Question (16)

An object has mass 360 g and density 3 g/cm³. Its volume is:

Explanation:

Link:

Question (17)

Which sample has the greatest density?

Explanation:

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Question (18)

A block of metal has mass 500 g and volume 250 cm³. Calculate its density.

Explanation:

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Question (19)

If the mass of a substance doubles while volume remains the same, its density:

Explanation:

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Question (20)

A material occupies 80 cm³ and has density 2.5 g/cm³. Its mass is:

Explanation:

Link:

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