Atmospheric Pressure

Q. What are the devices that work on the basis of atmospheric pressure?

Q.

When a paper ball is kept near the mouth of a plastic bottle and air is blown through the sides, it will be pushed out because ___.

1. the air pressure inside the bottle is same as that at its mouth.

2. the pressure is same in the bottle and outside it.

3. the air pressure inside the bottle is more than the pressure at its mouth.

4. the air pressure inside the bottle is less than that at its mouth.

Q.

A rubber sucker as shown above, when pressed on a surface sticks to it, because:

1. A partial vacuum is created on pressing the rubber sucker.

2. Atmospheric pressure acts on it externally.

3. Atmospheric pressure is less than the internal pressure.

4. The suckers have a very strong adhesive force.

Q.

What is the principle/relation that is being used in the take-off of aeroplanes?

1. Velocity-pressure relation

2. Temperature-pressure principle

3. Temperature-velocity relation

4. Pressure-density principle

Q.

One atmospheric pressure is _____ kPa.

Q.

One atmospheric pressure is equal to 101325 Newton/square metre. That is around 10 tonnes of mass over 1 square metre area. How are we able to bear such a huge burden over our heads?

1. Our internal pressure balances external pressure.

2. We are used to this burden since we are experiencing it since birth.

3. Atmospheric pressure is balanced by gravity.

4. Atmospheric pressure is a hypothetical concept and it does not act in reality.

Q.

Suggest two methods to find out winds direction at a given place ?

Q.

When a vehicle moves very fast, a region of ___ is created behind the vehicle.

1. low pressure

2. high pressure

3. zero pressure

4. high temperature

Q. Atmospheric pressure is the pressure exerted by the atmospheric air.

1. False
2. True

Q. The pressure exerted due to the air weight is called atmospheric pressure.

1. False
2. True

Q.

Imagine that you are having your favourite juice using a straw. Then which statement is correct?

1. A straw works on the basis of atmospheric temperature.

2. A straw works on the basis of atmospheric density.

3. A straw works on the Bernoulli's principle.

4. A straw works on the basis of Archimedes's principle.

Q.

What is air pressure?

Q. What happens when we blow into the space between two stationary balloons suspended at the same height by a thread?

1. They come toward each other.
2. They move away from each other.
3. They swing in opposite directions.
4. Nothing will happen.

Q.

Consider a syringe whose open end has been sealed, now if we press the piston with our hand, then the pressure inside the syringe will be ____.

1. higher or lower than atmospheric pressure depending on the force applied

2. much lower as compared to atmospheric pressure

3. higher than atmospheric pressure

4. marginally lower than atmospheric pressure

Q. The pressure exerted by atmosphere is known as ____ pressure.

1. gauge
2. absolute
3. atmospheric
4. fluid

Q.

A small paper ball is kept in the neck of a glass bottle held horizontally. Explain, why, it is difficult to force the paper ball into the bottle by blowing air into the bottle

Q. The pressure exerted by atmosphere is known as _______ pressure.​

1. atmospheric​
2. absolute​
3. gauge​
4. fluid​

Q. The pressure exerted by the air which is present above us is called:

1. Fluid pressure
2. Atmospheric pressure
3. Absolute pressure
4. Gauge pressure

Q.

When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. What is the reason behind the rise of water in the dropper?

Q.

A rubber sucker, when pressed on a surface sticks to it, because:

1. The suckers have a very strong adhesive which holds it in place

2. Rubber sucker has some glycerin in it

3. Atmospheric pressure acts on it externally

4. Gravitational pull acts on it

Q.

What will happen if there are air bubbles in the tube while measuring atmospheric pressure?

1. Mercury will begin to get heated

2. It will add more unwanted pressure

3. None of these

4. Both A and B

Q. A bird flying in the air experiences which type of pressure?

1. Atmospheric pressure
2. It experiences no pressure
3. Liquid pressure
4. Hydrostatic pressure

Q. Atmospheric pressure is the pressure exerted by the atmospheric air.

1. True
2. False

Q. Which of the following statement is correct about atmospheric pressure?

1. It is less at sea level than at the top of a mountain.
2. It is caused due to weight of air molecules.
3. It is exerted only above our head.
   
4. It does not help us in breathing.
   

Q.

The burning of fossil fuels creates a low pressure region. Pick out the correct options regarding this.

1. Pressure difference will be same as temperature and pollution has no relation with pressure.

2. Highly polluted regions will have low pressure

3. Highly polluted regions will have high pressure

4. Warm air region will be at low pressure.

Q. A rubber sucker, when pressed on a surface sticks to it. Which of the following factors is responsible for this?

1. Gravitational pull acts on it
2. Atmospheric pressure acts on it externally
3. Rubber sucker has some glycerin in it
4. The suckers have a very strong adhesive which holds it in place

Q.

Statement 1: Atmospheric pressure is a huge pressure which is equivalent to the weight of ten cars pressing on us every square meter.

Statement 2: We are getting crushed by this huge pressure and that's why we are feeling muscle pain.

1. Only statement 2 is correct

2. Only statement 1 is correct

3. Statement 2 is correct and statement 1 is the correct reason for it

4. Statement 1 is correct and statement 2 is the correct reason for it

Q. The pressure applied by the air which is present above us is called as ___

Q. Pressure is one of the key elements used to predict the weather.

1. True
2. False

Q.

A rubber sucker, when pressed on a surface sticks to it, because:

1. The suckers have a very strong adhesive which holds it in place

2. Atmospheric pressure acts on it externally

3. Rubber sucker has some glycerin in it

4. Gravitational pull acts on it