Pressure within a liquid depends only on the density of the liquid, the acceleration due to gravity, and the depth within the liquid . The pressure exerted by such a static liquid increases linearly with increasing depth.
What are the factors that affect the pressure at a point in a liquid?
Pressure at a point in a liquid depends upon the following three factors: (i) Depth of the point below the free surface . (ii) Density of liquid. (iii) Acceleration due to gravity.
Which factors affect pressure?
- Temperature: As the temperature increases, air expands because of which its density decreases which results in low pressure. ...
- Height from Sea Level: ...
- Moisture in Air (Humidity): ...
- Gravitation of Earth: ...
- Rotation of Earth:
On which two Factor pressure depends on?
(1)It depends on force applied . (2)Area over in which force acts. The same force can produce different pressure depending upon area in which it acts. When the force acts over a large area,the pressure produced is less.
What are the two factors that affect fluid pressure?
Two factors influence the pressure of fluids. They are the depth of the fluid and its density . A fluid exerts more pressure at greater depths.
What are the 3 factors affecting fluid pressure?
- Density of liquid (ρ)
- Depth of liquid (h)
- Acceleration due to gravity (g)
What are two factors affecting pressure class 8?
- The thrust.
- The area on which the thrust is applied.
- Larger the area on which a thrust acts, less is the pressure exerted by it.
- Larger the thrust acting on an area more is the pressure exerted on it.
Why does pressure increase with density?
As shown in the equation, the height of the column isn’t the only thing that affects the pressure, the density of the liquid does too. As the density of the liquid increases , so does the pressure. If the liquid is open to the air, there will also be atmospheric pressure on its surface.
How does pressure varies with change in force?
PRESSURE IS DIRECTLY PROPORTIONAL TO FORCE APPLIED TO ANY BODY AS PRESSURE= FORCE /AREA .. THERE FORE PRESSURE VARIES WITH CHANGE IN FORCE. FOR EXAMPLE- IF YOU APPLY MORE FORCE ON A IRON NAIL TO PUT IT INTO THE WALL.. MORE PRESSURE WILL BE APPLIED BY THE NAIL ON THE WALL..
Why is pressure equal in all directions?
Pressure at any point below the upper boundary of fluids, such as air and water, is uniform in all directions due to the fluid molecules being in constant motion and continually bumping into one another .
How can gas pressure be reduced?
Decreasing the number of molecules would decrease the number of collisions and thereby decrease the pressure. Second you could change the energy of the system by chaining the temperature. More energy would make the molecules move faster.
Does pressure depend on area?
Force applied. ... Here P is the pressure , F is the force applied and A is the surface area . Therefore, we can see that pressure depends on force and surface area .
Does pressure depend on volume?
More collisions mean more force, so the pressure will increase. When the volume decreases, the pressure increases . This shows that the pressure of a gas is inversely proportional to its volume. This is shown by the following equation – which is often called Boyle’s law.
What are the 2 factors on which effect of force depends?
Force and Pressure | Short/Long Answer Questions
Solution: Factors on which moment of force depends are: (i) The magnitude of the force applied. (ii) The distance of line of action of the force from the axis of rotation .
What is pressure What does pressure depend on class 8?
Answer: Pressure is force unit per area. Pressure depends on two factors: The magnitude of force applied – the greater the force, the greater is its effect. The area over which the force is applied, i.e. the area of contact between the two objects.
What causes pressure in a fluid?
The pressure in a liquid is due to the weight of the column of water above . Since the particles in a liquid are tightly packed, this pressure acts in all directions. For example, the pressure acting on a dam at the bottom of a reservoir is greater than the pressure acting near the top.
