The heat lost or gained by a body depends on mass of the body, change in temperature of the body and the specific heat capacity of the .....

Let, The area of piston A be ‘A1’ The area of piston B be ‘A2’ Force on piston A be ‘F1’ Force on piston B be ‘F2’ According to Pascal’s law, Pressure at A = Pressure at B F1A1  = F2A2 .....

a. The law of floatation is verified with the experiment given in the diagram. b. If some amount of salt is dissolved in water contained in the can, the test tube rises up. This happens due to the increase in density of water after adding the salt .....

The differentiate between upstroke and down stroke are: Upstroke Down stroke 1. During upstroke the handle of  hand pump is pushed down. 1. During down stroke handle of hand pump is lifted up. 2. During upstroke .....

A water pump is based on the principle of atmospheric pressure. The atmospheric pressure i. e the pressure exerted by the atmosphere due to its weight cannot push up water up to 10 metre or .....

The air pressure decreases as the height from the earth's surface increases. When a balloon reaches very high, the air pressure inside the balloon cannot be balanced by the atmospheric pressure (i.e. air pressure outside the .....

The differentiate between force and pressure are: Force Pressure 1. Force is pull acting on a body. 1. It is the force acting per unit area normally. 2. Its SI unit is Newton. 2. Its SI unit is .....

Density of an egg is more than the density of pure water but the density of the egg is less than the density of salt water. So, the salt water gives / exerts more upthrust on the egg than the pure water. Therefore, the egg floats in salt .....

A body floats in water, if its density is less than that of water. But a body sinks in water if its density is more than that of water. A piece of iron sinks in water as the density iron is more than the density of the water. But, a ship made of .....

The differences between density and relative density are: Density Relative density 1. It is the mass per unit volume. 1. It is the ratio of density of a substance to the density of  water at 4oc. 2. Its unit is .....

As we know that water is denser than air, water gives more upthrust since then the air. Because of the more upthrust of water, the weight of the bucket becomes less when it is inside the water. But when it is taken out of water, it experiences .....

When the train passes over a railway track, the whole weight of the train acts on the railway line beneath it, due to large sized concrete sleepers the force of this weight spreads over a large area, thereby reducing the pressure on the ground. As a .....

An object heavier than water floats in it when the object displaces water equal to its own .....

The liquid pressure is given by the formula P = hdg. Where the h= height of the liquid column, d = density of liquid and g is the acceleration due to gravity. Thus, these three are the factors affecting the liquid .....

The pressure exerted by the atmosphere due to its weight is called atmospheric pressure. The value of atmospheric pressure at sea level is 760mmHg or 1.013 × 105 .....

A body sinks in water if, the density of the body is greater than the density of a liquid in which it is .....

The force with which liquid pushes up an object, which is partially or wholly immersed in the liquid is called .....

When 1N force is applied over a surface 1m2, then the pressure exerted is called 1 Pascal .....

Hydrometer is a device based on law of floatation. Hydrometer is used to measure the density of liquids. A specially designed hydrometer is used to test the purity of milk and is also called lactometer. It is easier to pull a bucket of water from .....

Density refers to the amount of mass per unit volume. Material with high densityhas a lot of mass in a little space. According to law of floatation, Objects with a high density sink whileobjects with a low density tend to float. When a solid is kept .....

Here, Given, Area of small cylinder (A1) = 60 cm2 = 0.006 m2 Area of large cylinder (A2)   = 6 m2 Load on large cylinder (F2) = 500 N Effort on small cylinder (F1) =? According to Pascal's Law, Pressure exerted on small piston = Pressure .....

The differences between Archimedes' principle and law of floatation are as followings: Archimedes' principle Law of floatation  It states that, when a body is partially or  wholly immersed in a liquid, it .....

We have,  U = dgV,                                         where, U = Upthrust                 .....

The upthrust of a liquid acting on a body depends on the density of the liquid, the volume of the body immersed in the liquid and acceleration due to .....

The relationship between the upthrust of a liquid and its density is that the upthrust of a liquid is directly proportional to its density at constant volume of liquid .....

The relationship between liquid pressure and density of liquid is that the liquid pressure is directly proportional to its .....

When the amount of force is kept constant, the pressure increases on decreasing the area on which the force acts as the pressure is inversely proportional to .....

The force that acts perpendicular to and into a surface is called .....

The principle of flotation states that a body floats in a liquid if the weight of the liquid displaced by its immersed portion is equal to its own .....

Hydrometer is an instrument which is used for the measurement of relative density of .....

The upward force exerted by a liquid on an object immersed in liquid is known as .....

Pascal’s law states that the pressure applied to any part of the surface of an enclosed liquid is transmitted equally and perpendicularly in all directions throughout the .....

Pressure is defined as the force acting normally per unit .....

a)    Mass is directly proportional to the density.

.....

Sinking and floating of a body depend on: 1. density of the body 2. density of the .....

a)    Here, weight of the stone is maximum in medium B. It is less in medium A and the least in medium C. .....

It is a simple device in which a small force is multiplied many times and is used for compressing cotton bales extracting oil from seeds, punching holes in metals, .....

Bodies which are less denser than water float, those bodies which are denser than water sink in it. According to principle of floatation,'when any object displaces a weight of water equal to its own weight, it floats in water'. An iron nail .....

The function of mercury barometer is to measure atmospheric pressure.  The function of air pump is to fill air inside the tubes of .....

The law of floatation states that a floating object always displaces liquid equal to its own .....

The equipments based on Pascal's law are: 1. Hydraulic lift 2. Hydraulic .....

Here, we have to calculate the value of pressure on a table when the area of contact is different. For that, at first let us collect the given information.  The information given are, The mass of a wooden block .....

Here, we have to find the part of the wooden block above the water surface. For that, at first let us collect all the given information. The information given are, The volume of wooden block (let us represent it by Vw) .....

 Here, ice is floating on the surface of water and we have to find the part of ice above the surface of .....

Here, we have to calculate the magnitude of upthrust acted on the body due to water.

For that, at first let us collect the given .....

Here, we have to calculate the weight of an object and the magnitude of upthrust provided by the liquid.

.....

Concave lens is called a diverging lens because it diverges a parallel beam of light after refraction through .....

The working principle of hydraulic lift is that the pressure developed by an external force at a piston is equal to the pressure developed by load at another .....

Not only solids, but also liquids exert pressure. But there is no fixed surface area of liquids. So, let us see another formula to calculate the pressure for liquid; (P = hdg) Where, P is the pressure exerted by .....

Here, we have to calculate the density of silver.

.....