Concise Physics Middle School for Class 8>Chapter 2 - Physical Quantities and Measurement>TEST YOURSELF>Q B

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IMPORTANT

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Which of the following will sink or float on water ? (Density of water $= 1 g {cm}^{- 3}$ )
body D having density $0.85 g {cm}^{- 3}$ .

Important Questions on Physical Quantities and Measurement

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8th ICSE

IMPORTANT

Concise Physics Middle School for Class 8>Chapter 2 - Physical Quantities and Measurement>TEST YOURSELF>Q B

What is the law of floatation ?

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8th ICSE

IMPORTANT

Concise Physics Middle School for Class 8>Chapter 2 - Physical Quantities and Measurement>TEST YOURSELF>Q B

The density of water is

1.0 g {cm}^{- 3}

. The density of iron is

7.8 g {cm}^{- 3}

. The density of mercury is

13.6 g {cm}^{- 3}

.
Answer the following:
Will a piece of iron float or sink in water ?

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8th ICSE

IMPORTANT

Concise Physics Middle School for Class 8>Chapter 2 - Physical Quantities and Measurement>TEST YOURSELF>Q B

The density of water is

1.0 g {cm}^{- 3}

. The density of iron is

7.8 g {cm}^{- 3}

. The density of mercury is

13.6 g {cm}^{- 3}

.
Answer the following:
Will a piece of iron float or sink in mercury ?

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8th ICSE

IMPORTANT

Concise Physics Middle School for Class 8>Chapter 2 - Physical Quantities and Measurement>TEST YOURSELF>Q B

The diagram given below show a body floating in three different liquids. A, B and C at different levels.
In which liquid does the body experience the greatest buoyant force ?

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8th ICSE

IMPORTANT

Concise Physics Middle School for Class 8>Chapter 2 - Physical Quantities and Measurement>TEST YOURSELF>Q B

The diagram given below show a body floating in three different liquids. A, B and C at different levels.

Which liquid has the least density ?

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8th ICSE

IMPORTANT

Concise Physics Middle School for Class 8>Chapter 2 - Physical Quantities and Measurement>TEST YOURSELF>Q B

The diagram given below show a body floating in three different liquids. A, B and C at different levels.
Which liquid has the highest density ?

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Question Image

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8th ICSE

IMPORTANT

Concise Physics Middle School for Class 8>Chapter 2 - Physical Quantities and Measurement>TEST YOURSELF>Q B

For a floating body, how is its weight related to the buoyant force ?

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8th ICSE

IMPORTANT

Concise Physics Middle School for Class 8>Chapter 2 - Physical Quantities and Measurement>TEST YOURSELF>Q B

Why does a piece of ice float on water ?