Relative Density

Q.

Distinguish between density and relative density.

Q.

What is the S.I. unit of relative density?

1. $kg{m}^{-3}$

2. $m^{3}k{g}^{-1}$

3. unitless

4. $kg{m}^{-2}$

Q.

The relative density of silver is $10.8$. The density of water is $1000kg/m^3$. The density of silver is:

1. 10.8 kg/m³

2. 10.8 ​ kg/m³

3. 10.8 10 kg/m³

4. None of these

Q.

The density of steel is $7.9\frac{gm}{c{m}^3}$ and the density of lead is $11.34\frac{gm}{c{m}^3}$. Which of the following statement is true?

1. The volume of the lead is greater than the volume of steel for the same mass.

2. The mass of lead is greater than the mass of steel for the same volume.

3. Equal masses of lead and steel have the same volume.

4. Equal volumes of lead and steel have the same mass.

Q.

The mass of an empty density bottle is 21.8 when filled completely with water it is 41.8 g and when filled completely with liquid it 40.6 g . Find :

(a) the volume of density bottle.

(b)the relative density of liquid.

Q.

Convert 1mm of Hg into Pascal. Take density of Hg =13.6×10³ kg m^-3 and g = 9.8 ms-2

Q.

What is a density bottle? Why do we use a density bottle for measuring the density of the liquids? What is the process through which we can measure through the density bottle?

Q. Why ship doesn't sink in water

Q.

Explain the meaning of the statement 'Relative density of aluminium is 2.7'.

Q.

What is a submarine? How can it be made to dive into the water and come to the surface of the water?

Q.

Relative density of water is 1.0

1. True

2. False

Q.

The mass of a density bottle is $100g$ when empty. It weighs $175g$ when filled with water and $150g$ when filled with oil. What is the relative density of oil?

1. $0.5$

2. $0.75$

3. $1.5$

4. $0.66$

Q.

Define the term relative density of a substance.

Q. The density of a substance can be calculated using the formula:-

DENSITY= MASS/VOLUME

Mary's teacher told her that the mass of the 25 ml of water is 25g and the mass of 25 ml of ethanol is 19.75g .

What is the correct value for the density of the mixture in g/ml?

Select from the following options with explanation:-

A) 0.79
B) 0.89
C) 0.93
D) 1.79

Q.

How many kgs of milk can be poured in a jar that contain 0.5 kg of water? Given density of milk is 1040 kg/m^3.

Q. HOW WILL YOU DETERMINE THE DENSITY OF LIQUID USING DENSITY BOTTLE??? IN STEPS

Q.

Explain, why a ship sinks to a great depth in river water than in seawater?

Q.

The mass of a bottle is 35 g when it is empty, 65 g when it is filled with water and 59 g when it is filled with alcohol. Find the relative density of alcohol.

1. 0.4

2. 0.8

3. 1.2

4. 1.6

Q.

Describe an experiment to determine the density of a liquid?

Q.

How will you determine the density of irregular solids that are insoluble in water.

Q.

A capped empty glass bottle floats into tank, whereas uncapped empty glass bottle sink . Why?

Q.

Explain the meaning of the statement relative density of aluminium is 2.7 .

Q.

Which of the following is not the fundamental quantity.

1. Mass

2. length

3. velocity

4. time

Q.

Unit of relative density is kg m³

1. True
2. False

Q.

Diagram 1 shows a measuring cylinder containing water.

Diagram 2 shows the same measuring cylinder and water after 10 identical solid glass spheres have been added. The mass of one of the spheres is 10 g.
What is the density of the glass from which the spheres are made?

1. 4.0 g/cc
2. 0.25 g/cc
3. 2.5 g/cc
4. 0.40 g/cc

Q.

Can you name two liquids heavier than water ? What will happen if water is poured in a container having any one of the liquid named by you?

Q.

Ramesh buys six bottles of syrup, each containing 1 litre. Each empty bottle weighs 400g. The density of the syrup is $1.2g/c{m}^3$. What weight does Ramesh have to carry home?

Q.

What are the fundamental units in S.I.?

Q.

What happens when we fill a balloon with Helium gas?Support your answer with reasons.

Q.

The relative density of a liquid is $0.5$. The density bottle weighs $200g$ when filled with water and $120g$ when filled with the liquid. The mass of density bottle is:

1. $90g$

2. $50g$

3. $40g$

4. $60g$