MEDIUM
8th ICSE
IMPORTANT
Earn 100

How can the knowledge of relative density help in verifying the purity of substances?

Important Questions on Physical Quantities and Measurement

EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Check your progress>Q 1

A wax candle _____on/in water. (Floats/sinks)

EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Check your progress>Q 2

The ratio of density of a substance to the density of water at 4°C is known as the _____ of the substance.

MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Check your progress>Q 3
A _____ (barometer/hydrometer) is the instrument used to measure the relative density of liquids.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Check your progress>Q 4

Kerosene will float in water because its density is _____than that of water. (More/Less)

EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Check your progress>Q 5

The density of seawater is _____ (more/ less) than the density of distilled water.

MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 2 - Physical Quantities and Measurement>Think and answer>Q 1

Why is the cooling unit of a refrigerator made at the top?

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

Why is an air-conditioner normally installed at a height in a room?

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

An irregular solid which when completely immersed in water displaces 10 mL of water. The volume of the solid is