Question

1. 1gm/cm 3=1000kg/m 3 prove


2. The density of water is maximum at ............ it ............. when it cooled

from............. to 0

o C or it is heated above 4 o C


3. Determine the density of an irregular solid (explain)


4. The barometer is used to measure the ............. . Mercury is used because it

has high ..........


5. The density of water is 1gm/ cm 3 what do you mean by this statement ?


6. Why density of a substance decreases with the increase in temperature ?


NUMERICALS

1. A car travels a distance of 15 km in 20 min. Find speed of the car in
a)
km/he
b) m/a


2. The mass of 5 liter of water is 5 kg . Find the density of water in g/cm 3


3. The mass of a lead piece is 115g . When it is immersed into a measuring
cylinder the water level rises from mark to 20ml to 30 km find

a) the
volume of the lead piece
b) the density of the lead in kg /m 3
​

Answer 1

1. The answer is 0.001. We assume you are converting between gram/cubic centimetre and kilogram/cubic metre. You can view more details on each measurement unit: g/cm3 or kg/m3 The SI derived unit for density is the kilogram/cubic meter. 1 g/cm3 is equal to 1000 kilogram/cubic meter..

2.about 4°C

When it is cooled from the room temperature, the liquid water tends to become increasingly dense, as with another kind of substances, but approximately at about 4°C, pure water is said to reach its maximum density. As it gets cooled further, it tends to expand and becomes less dense.

3.The mass you can measure on a balance or a scale, and the volume is the amount of space the object occupies. You can find the volume of an irregular object by immersing it in water in a beaker or other container with volume markings, and by seeing how much the level goes up..

Explanation:

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