Pressure in liquids and gases - class-X
Description: pressure in liquids and gases | |
Number of Questions: 43 | |
Created by: Kalki Agrawal | |
Tags: pressure in liquids and gases statics and dynamics of fluid (liquid and gas) motion, force and pressure force pressure physics floatation forces and matter |
As the depth of a liquid increases, the pressure of liquid decreases.
76 cm of Hg pressure is equivalent to 76 pascal.
Sideways pressure exerted by a liquid is called its lateral pressure.
With the increase in the weight of an object the pressure:
The area of cross-section of the pump plunger and the press plunger of hydraulic press are $0.03 m^2$ and $9 m^2$ respectively. How much is the force acting on the pump plunger of the hydraulic press overcomes a load of 900 kgf?
Force exerted by a truck is 500000 N and the pressure on the ground is 2500000 Pa. Calculate the area of contact of tyres with ground?
Deep sea divers put on special suit to :
Which of the following quantity is expressed as force per unit area?
Pressure is vector quantity .State true or false.
Two stretched remembrance of area $2$ and $3\ m^{2}$ are placed in a liquid at the same depth. The ratio of the pressure on them is
A Liquid of density p is coming out of a hosepipe of the radius with horizontal speed $\upsilon $ and hits a mesh. 50 % of the liquid passes through the mesh unaffected. 25 % loses all of its momentum and 25 % comes back with the same speed. The resultant pressure on the mesh will be:
Since pressure is force per unit area, it is a vector quantity.
We sit in the room with windows open. Then
In a hydel station, the motion produced in turbines is due to the
Pascal is a unit used for measuring :
Pressure acting on a body is a :
$1$ millibar is equal to
Pascal is the unit for
$Pressure \times Volume=$
Fill in the blank.
Which of the following describe $Pressure$ correctly?
Unit of Pressure is a
For constant $Pressure$
When the temperature of atmosphere rises,
Fill in the blank.
As the moisture present in the air increases,
Effect of a force depends on the
As altitude increases, atmospheric pressure
Which of the following ratio expresses pressure?
1000 small balls each weighing 1 g strike one sq. cm of a area per second with a velocity of 100 m/sec in a normal direction and rebound with the same velocity. The pressure on the surface (in N/m$^2$) is :
Identify the following shows the application of pressure in our everyday life?
Choose the correct statement from the following?
For the equlibrium AB (g) $\rightleftharpoons A (g) + B(g). K _p$ is equal to four times the total pressure. Calculate the number moles of A formed if one mol of AB is taken initially
A same amount of same gas of temperature T are enclosed in a three identical vessel A,B, & C. The temperature of wall of three container is $T _A , T _B$ & $T _C (T _A > T _B > T _C)$ respectively. The pressure on wall of vessel.
A hole is made at the bottom of a tank filled with water. If total pressure at the bottom of the tank is three atmosphere, then the velocity of efflux at the bottom is (1 atm = $10^5 N/m^2$)
$3$ moles of a monoatomic gas requires $60\ cal$ heat for $5^{\circ}C$ rise of temperature at constant volume, then heat required for $5$ moles of same gas under constant pressure for $10^{\circ}C$ rise of temperature is $(R = 2\ cal/mole-k)$.
Temperature of $1\ mole$ of a gas is increased by $2^ {o}C$ at constant pressure, work done is
Air is pumped into an automobile tube upto a pressure of $200 \mathrm{kP} $ in the morning when the air temperature is $ 22^{\circ} \mathrm{C} $ . During the day, temperature rises to $ 42^{\circ} \mathrm{C} $ and the tube expands by $2 \% $ . The pressure of the air in the tube at this temperature, will be approximately
A person blows into open-end of a long pipe. As a result, a high pressure pulse of air travels down the pipe. When this pulse reaches the other end of the pipe,
Which of the following are units used to measure pressure?
The SI unit of pressure is $N/m^2$.This unit is otherwise called ____________.
Two women are of the same weight. One wears sandals with pointed heels while the other wears sandals with flat soles. Which one would feel more comfortable while walking on a sandy beach?