Advertisements
Advertisements
प्रश्न
Why does a ship made of iron and steel float in water whereas a small piece of iron sinks in it ?
Advertisements
उत्तर
Iron and steel pieces sink in water because iron and steel have higher density than water, but iron and steel ships float in water because they trap a lot of air and thereby reduce the average density of the ships (steel and iron) than water.
APPEARS IN
संबंधित प्रश्न
Why does an object float or sink when placed on the surface of water?
The volume of 50 g of a substance is 20 cm3. If the density of water is 1 g cm−3, will the substance float or sink?
The volume of a 500 g sealed packet is 350 cm3. Will the packet float or sink in water if the density of water is 1 g cm−3? What will be the mass of the water displaced by this packet?
What is the density of water in SI units ?
The relative density of mercury is 13.6. What does this statement mean?
Why does ice float in water ?
The density of a body is 800 kg/m3. Will it sink or float when dipped in a bucket of water ? (Density of water = 1000 kg/m3).
An iron nail sinks in water but it floats in mercury. Why ?
Consider the following information in respect of four objects A, B, C and D :
| Object | Density(kg/m3) | Volume(m3) | Mass(kg) |
| A | 2 | 4000 | |
| B | 8000 | 4 | |
| C | 2000 | 1000 | |
| D | 4 | 2000 |
Which object would float on water ?
Choose the odd one:
