The area is the amount of space occupied by a substance.

Important Questions on Physical Quantities and Measurement

EASY

7th ICSE

IMPORTANT

Lakhmir Singh's Science Physics>Chapter 1 - Physical Quantities and Measurement>EXERCISES>Q 2

If a car is running slow, we say that its speed is low.

EASY

7th ICSE

IMPORTANT

Lakhmir Singh's Science Physics>Chapter 1 - Physical Quantities and Measurement>EXERCISES>Q 3

The SI unit of area is square metre.

EASY

7th ICSE

IMPORTANT

Lakhmir Singh's Science Physics>Chapter 1 - Physical Quantities and Measurement>EXERCISES>Q 4

A burette is a tube similar to a measuring jar, with a pitch cock provided at the bottom.

MEDIUM

7th ICSE

IMPORTANT

Lakhmir Singh's Science Physics>Chapter 1 - Physical Quantities and Measurement>EXERCISES>Q 5

The mass per unit volume of a substance is called its density.

EASY

7th ICSE

IMPORTANT

Lakhmir Singh's Science Physics>Chapter 1 - Physical Quantities and Measurement>EXERCISES>Q 6

Equal volumes of iron and aluminium will have same densities. 

EASY

7th ICSE

IMPORTANT

Lakhmir Singh's Science Physics>Chapter 1 - Physical Quantities and Measurement>EXERCISES>Q 7

The volume of a cube of side 7 cm is 149 cm³.

MEDIUM

7th ICSE

IMPORTANT

Lakhmir Singh's Science Physics>Chapter 1 - Physical Quantities and Measurement>EXERCISES>Q 8

The speed of train A covering 200 km in 4 hours is more than train B covering the same distance in 6 hours.

EASY

7th ICSE

IMPORTANT

Lakhmir Singh's Science Physics>Chapter 1 - Physical Quantities and Measurement>EXERCISES>Q 1

Arrange the following speeds in increasing order (keeping the least speed first):
(i) An athlete running with a speed of $10 \raisebox{1ex}{$\mathrm{m}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{s}$}\right.$.
(ii) A bicycle moving with a speed of $200 \raisebox{1ex}{$\mathrm{m}$}\!\left/ \!\raisebox{-1ex}{$\min $}\right.$.
(iii) A scooter moving with a speed of $30 \raisebox{1ex}{$\mathrm{km}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{h}$}\right.$.