Tag: common consequences of the atmospheric pressure

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Multiple choice physics pressure common consequences of the atmospheric pressure atmospheric pressure and its consequences important points about atmospheric pressure

What happens when pressure inside a sealed can is less than the atmospheric pressure?

  1. The can is crushed

  2. The can bursts

  3. No change is observed

  4. The can swells
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When pressure inside a sealed can becomes less than the atmospheric pressure, the atmospheric pressure pushes the surface of the can inside and the can is crushed.

Multiple choice physics pressure common consequences of the atmospheric pressure atmospheric pressure and its consequences important points about atmospheric pressure

What happens, when the pressure inside a sealed bottle exceeds the atmospheric pressure?

  1. The bottle bursts out

  2. The bottle gets crushed

  3. The bottle remains as it is

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When the pressure inside a sealed bottle exceeds the atmospheric pressure, it bursts out.

Multiple choice physics pressure common consequences of the atmospheric pressure atmospheric pressure and its consequences important points about atmospheric pressure

In crushing can experiment the can gets crushed because of:

  1. dcrease in internal pressure

  2. Increase in internal pressure

  3. increase in atmospheric pressure

  4. decrease in atmospheric pressure
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Crushing can experiment , Take an empty and absolutely clean Mobil oil can and put in it about 0.25 liter of water. Great the can in fire till all the air is expelled out and the steam comes out freely from its mouth.screw the mouth of the can with a lid and immediately remove it away from the fire .pour cold water on the can. It is found that the can gets crushed.the reason is that on pouring cold water, the steam changes into water ,thereby,causing a vacuum inside the can. Thus the tremendous atmospheric pressure,exerts pressure from outside and crushed the can.

Multiple choice physics pressure common consequences of the atmospheric pressure atmospheric pressure and its consequences important points about atmospheric pressure

When a plane moves along the runway, the air above the wing speeds up more, So the pressure

  1. Lowers

  2. Increases

  3. Raises

  4. No Pressure
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
According to Bernoulli's theorem        $ P + \rho gh+ \dfrac{1}{2}\rho v^2= constant$
$\implies$  When $v$ is increases, then pressure $(P)$ is lowers.