Gas Pressure

Q. What is strong nuclear force?

Q.

Which is the strongest force among the four fundamental forces?

1. Gravitational

2. Electromagnetic
3. Strong nuclear
4. Weak nuclear

Q.

How does air exert pressure?

Q.

Which is the strongest force among all four fundamental forces of nature?

1. Gravitational

2. Electromagnetic

3. Strong nuclear

4. Weak nuclear

Q.

What would have happened if nuclear forces were to exist on a larger scale

Q.

A metallic syringe is taken with its piston at the mid position. The space inside is filled up with air. Now we seal its open end and heat it. Select the most appropriate observation.

1. The piston will start moving in.

2. The piston will start moving out.

3. The piston will first move out and then in.

4. The piston will first move in and then out.

Q. A balloon inflates when the air is pumped into it. Which of the following is the correct conclusion?

1. Gases do not occupy any volume.
2. Gases don't exert pressure.
3. Gases are heavier than solids.
4. Gases exert pressure.

Q. Name the instrument which is used to measure atmospheric pressure.

1. Barometer
2. Thermometer
3. Manometer
4. Speedometer

Q.

If an inflated balloon is punctured, air escapes from the balloon. What inference can we deduce from this?

1. Air inside the balloon exerts pressure in all directions.

2. Air inside the balloon is cold.

3. The molecules of air inside the balloon are stationary.

4. Air inside the balloon is hot.

Q.

A balloon inflates when air is pumped into it. Which of the following conclusions can be derived from this?

1. None of these

2. Gases can change their volume

3. Gases exert pressure

4. Gases don't exert pressure

Q. A column of air extending up to height of the atmosphere exists on an area of $100c{m}^2$ exists above our head. Why don't we get crushed?

1. The pressure inside his body is equal to the atmospheric pressure.
2. The pressure inside his body is higher than the atmospheric pressure.
3. His skin is not sensitive enough to feel it.
4. The pressure inside his body is lower than the atmospheric pressure.

Q. Name the instrument which is used to measure atmospheric pressure.

1. Thermometer
2. Manometer
3. Speedometer
4. Barometer

Q.

If an inflated balloon is punctured, air escapes from the balloon. What inference can we deduce from this?

1. Air inside the balloon exerts pressure in all directions.

2. The molecules of air inside the balloon are stationary.

3. Air inside the balloon is hot.

4. Air inside the balloon is cold.