EASY
8th ICSE
IMPORTANT
Earn 100

Write the order in which the density decreases in three states of matter.

Important Questions on Physical Quantities and Measurement

HARD
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Exercises>Q F

Explain briefly the construction of a hydrometer.

EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Exercises>Q F
Define the relative density of a substance. Why does relative density have no units?
MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Exercises>Q F

Why is a Plimsoll line a safety requirement for ships?

MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Exercises>Q F

Write the factors that determine whether a solid will float or sink in a liquid.

MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Exercises>Q F

Explain how the density of a substance varies with change in temperature.

MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Exercises>Q G

How can you determine the density of an irregular solid with the help of a measuring cylinder?

MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Exercises>Q G

Explain why solids have greater densities than liquids and liquids have greater densities than gases.

MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Exercises>Q G
How does the knowledge of relative density help in determining whether a substance floats or sinks in water?