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CBSE Class 8 Answered

The pressure of the inflated balloon is less or greater than the atmospheric pressure? Why? Explain.
Asked by JDishere19 | 29 Nov, 2021, 08:42: PM
answered-by-expert Expert Answer
Gas pressure inside an inflated balloon is always greater than the atmospheric pressure outside. Pressure is the force acting per unit area of a surface. When the air is filled inside the balloon the pressure inside the balloon increases and the balloon becomes spherical and exerts equal pressure in all directions in order to balance the atmospheric pressure.
Answered by Shiwani Sawant | 30 Nov, 2021, 12:04: PM

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CBSE 8 - Science
what is pressure
Asked by sitadeepak3 | 19 Aug, 2023, 08:00: PM
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CBSE 8 - Science
We say that pressure is defined as the amount of force exerted on an unit area and if the area is decreased, pressure increases For example an iron nail would be applying more pressure than any other thing let's say 100 N per m square but the question is an iron nail doesn't cover an area of m square so why do we say 100 N per m square
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CBSE 8 - Science
If the force applied on an area of 40 cm²  is 2N what is the pressure ?
Asked by Omwatisahu09 | 28 Oct, 2022, 11:34: AM
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CBSE 8 - Science
force acting on an area of 100 cm² is 200N find the pressure acting on this area in N/m²
Asked by dewoolkarrohit | 03 Jun, 2022, 02:27: PM
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CBSE 8 - Science
The pressure of the inflated balloon is less or greater than the atmospheric pressure? Why? Explain.
Asked by JDishere19 | 29 Nov, 2021, 08:42: PM
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what is pressure
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CBSE 8 - Science
A car has a weight of 8000N. The car is supported by 4 tyres.  The weight on each tyre is equal. The area of one tyre in contact with the ground is 150 cm2 . Calculate the pressure that one tyre exerts on the ground.  Show your working and give your answer in N/cm2 .
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