Pressure in Fluids

Q.

The pressure at a point in a liquid is

1. Same in all directions

2. Greater in the upward direction

3. Greater in the downward direction

4. None of these

Q. The pressure exerted by the gas is because particles of gas hit the walls of the containers.

1. True
2. False

Q.

What direction does water exert pressure?

1. Only upwards

2. Downwards

3. Upwards

4. Sidewards

Q. When we press the bulb of a dropper with its nozzle inside water, the air present in the bulb escapes in form of bubbles. Once we release pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is driven by_________.

1. pressure difference
2. pressure inside the dropper
3. shape of rubber bulb
4. gravity of Earth

Q. When we press the bulb of a dropper with its nozzle inside water, the air present in the bulb escapes in form of bubbles. Once we release pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is driven by_________.

1. pressure inside the dropper
2. gravity of Earth
3. shape of rubber bulb
4. pressure difference

Q. The pressure at a certain level in a water tank is

1. equal in all directions
2. always varying
3. unequal in all directions
4. infinitely large

Q. Pressure at a point inside a liquid does not depend on ___.

1. the depth of the point below the surface of the liquid
2. the volume of the liquid
3. value of g
4. the nature of the liquid

Q.

A bottle kept on a table started leaking at equal rates when two holes were made at the same level. This is because_______.

1. the liquid exerts equal pressure in all directions at the same level

2. the liquid does not exert any pressure

3. the liquid exerts unequal pressures in different directions at the same level

4. the liquid exerts pressure only at one hole and not at the other hole

Q. Harry says water exerts pressure on the bottom surface of the bucket as well as on the walls, but Robert says water exerts pressure only on the walls of the bucket. Choose the correct option.

1. Harry's statement is not correct.
2. Neither of them is correct.
3. Harry's statement is correct.
4. Robert's statement is correct.

Q. We have observed that water leaking from a pipe forms fountains. What conclusion can you draw from this observation?

1. Water exerts pressure on walls of the pipe.
2. Water exerts pressure in the middle of the pipe only.
3. Water does not exert pressure on walls of the pipe.
4. Water pressure decreases with an increase in density of the liquid.

Q.

Two identical cubes A and B are placed in a tank containing a liquid as shown below. Choose the correct statement regarding pressures exerted on them.

1. B

2. Both Same

3. None of these

4. A

Q. A body is floating in water. $1/3^{\text{rd}}$ of the body is inside the water and $2/3^{\text{rd}}$ is in the air as shown in the figure. Find out the density of the body.
${\rho }_w=\text{Density of water}$
${\rho }_b=\text{Density of the body}$

1. ${\rho }_b=\frac{{\rho }_w}{3}$
2. ${\rho }_b=\frac{{\rho }_w}{4}$
3. ${\rho }_b=\frac{2{\rho }_w}{3}$
4. ${\rho }_b=\frac{{\rho }_w}{2}$

Q. The deeper a body is in a liquid, the lesser the pressure acting on it.

1. False
2. True

Q.

When we are in water, can we feel the pressure difference

Q. Which of the following is a consequence of atmospheric pressure?

1. Natural breathing process
2. Drinking a soft drink through a straw
3. Working of a liquid dropper
4. All of these

Q. The pressure at a point in a liquid increases with increase in the surface.

1. height above
2. depth below
3. area of

Q. A dam has ______ walls at the bottom than at the top.

1. broader
2. normal
3. thinner
4. cant say

Q. The pressure at a point in a liquid increases with increase in the surface.

1. depth below
2. height above
3. area of

Q. When we press the bulb of a dropper with its nozzle inside water, the air present in the bulb escapes in form of bubbles. Once we release pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is driven by_________.

1. pressure inside the dropper
2. gravity of Earth
3. shape of rubber bulb
4. pressure difference

Q. A siphon can move the water from beaker B to A and then A to B.


\( t \)

Q. The three vessels shown in figure have same base area. Equal volumes of a liquid are poured in the three vessels. The force on the base will be
(a) maximum in vessel A
(b) maximum in vessel B
(c) maximum in vessel C
(d) equal in all the vessels
Figure

Q. When we press the bulb of a dropper with its nozzle inside water, the air present in the bulb escapes in form of bubbles. Once we release pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is driven by_________.

1. shape of rubber bulb
2. gravity of Earth
3. pressure inside the dropper
4. pressure difference

Q.

Liquids exert pressure on the walls of the container in which they are put.

1. True

2. False

Q. When we press the bulb of a dropper with its nozzle inside water, the air present in the bulb escapes in form of bubbles. Once we release pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is driven by_________.

1. shape of rubber bulb
2. gravity of Earth
3. pressure difference
4. pressure inside the dropper

Q. When we press the bulb of a dropper with its nozzle inside water, the air present in the bulb escapes in form of bubbles. Once we release pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is driven by_________.

1. gravity of Earth
2. pressure difference
3. shape of rubber bulb
4. pressure inside the dropper