Question

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Here you go ↓

1) What is Mass?
2) What is the density of water?
3) Write the SI unit of density.
4) Explain Density.
5) How do we calculate density ? ( formula )
6) How can we calculate Volume? (formula)
7) Calculate density when :-
Mass = 1 kg & Volume = 3.5 cm³.
8) What is volume?

That's all.

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Answer 1

Step-by-step explanation:

1 Mass, in physics, quantitative measure of inertia, a fundamental property of all matter. It is, in effect, the resistance that a body of matter offers to a change in its speed or position upon the application of a force. The greater the mass of a body, the smaller the change produced by an applied force.

2. Water/Density

997 kg/m³

3 SI unit of density is kilogram per cubic metre. It is represented as Kgm−3

4 The density, of a substance is its mass per unit volume. The symbol most often used for density is ρ, although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: {\displaystyle \rho ={\frac {m}{V}}} where ρ is the density, m is the mass, and V is the volume

5 The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.

6 Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height

7 Volume of body is equal to the volume of water displaced.

V

b

=V

w

=1000 cm

3

=0.001 m

3

(ii) :

Upthrust B=V

b

ρ

w

g=0.001×1000×10=10 N

(iii) :

True weight W=3.5×10=35 N

Apparent weight W

a

=W−B=35−10=25 N or 2.5 kg

8 Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance or 3D shape occupies or contains. Volume is often quantified numerically using the SI derived unit, the cubic metre.

Answer 2

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Hola dear user :) !

Here's your answer .

$\:$

1) What is Mass ?

$\:$

» The amount of matter in an object, measured in kilograms (Kg).

$\:$

2) What is the density of water ?

$\:$

» 997 kg/m³

$\:$

3) Write the SI unit of Density ?

$\:$

» The SI unit of Density is gram.

$\:$

4) Explain Density.

$\:$

» Density is a measure of how light or heavy a Material is.

$\:$

5) How do we calculate density ? (formula)

$\:$

$\implies \sf{Density = \dfrac{mass}{volume} \: }$

$\:$

6) How can we calculate volume ? (formula)

$\:$

$\implies \sf{volume = \dfrac{mass}{density} }$

$\:$

7) Calculate density when :-

Mass = 1 kg & volume = 3.5 cm³.

$\:$

» 1 kg to g ↓

» 1×1000

» 1000 g

$\:$

$\implies \sf{Density = \cancel \dfrac{1000}{3.5} }$

$\:$

$\implies \sf{Density = 285.714g / {cm}^{3} \: }$

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