Question

E. Match the columns.
Column A
1. Area
2. Volume
3. Capacity
4. Density
5. Speed
Column B
(a) litre
(b) m2
(c) kg/m3
(d) m/s
(e) m3
F. Give reasons for the following.
1. The SI unit of density is kg/m3.​

Answer 1

E. Match the column

1. Area - (b) m²

2. Volume - (e) m³

3. Capacity - (a) litre

4. Density - (c) kg/m³

5. Speed - (d) m/s

Explanation:

F. 1 The SI unit of density is kg/m³ because density is equal to mass /volume and SI unit of mass = kg and SO unit of volume is metre cube

Thus Density = Mass/Volume = kg/m³

Answer 2

1 - b

2 - a

3 - e

4 - d

5 - c

• The Système International unit, or SI unit, is an acronym for the French phrase for system international. The metric system that serves as the industry standard for measurements is called the International System of Units (SI). In the advancement of science and technology, SI units are essential. It is composed of 7 base units, from which 22 derivative units are generated. Either a standard multiple or a fractional quantity can be used to express SI units.
• In order to eliminate unit misunderstanding in technical and scientific study, the SI unit is a global standard of measures. It is crucial to have a standard unit system because it makes it easier for people around the globe to comprehend measurements in a single set of unit systems.

Here, the SI unit of Area is $m^{2}$.

The SI unit of Capacity is $m^{3}$.

The SI unit of volume litre.

The SI unit of Density is kg/m³.

The SI unit of Speed is m/s.

Hence, the matches are,

1 - b

2 - a

3 - e

4 - d

5 - c

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