Archimedes’ Principle: It states that a body, when immersed in a liquid, experiences an upward thrust equal to the weight of the liquid displaced by it.
Avogadro’s Hypothesis: It is a modification of Berzelius’ hypothesis. It states that equal volumes of all gases
under similar conditions of temperature and pressure contain equal number of molecules.
Boyle’s Law: States that the volume of certain gas is inversely proportional to the pressure at a constant
temperature. In other words, the product of pressure and volume remains constant provided the temperature
ratios to one another and also to the volumes of the
products, if gaseous - all the volumes being measured
under similar conditions of temperature and pressure.
Graham’s Law of Diffusion : States that the rates of diffusion of gases are inversely proportional to the square roots of their densities under similar conditions of temperature and pressure.
Law of Definite Proportions : A chemical compound is always found to be made up of the same elements
combined together in the same ratio by weight.
Law of Floatation : For a body to float, the following conditions must be fulfilled:
(1)The weight of the body should be equal to the weight of the water displaced.
(2) The centre of gravity of the body and that of the liquid displaced should be in the same straight line.
Newton’s Law of Universal Gravitation : States that “Every portion of matter attracts or tends to approach
every other portion of matter in the universe with a force proportional to the masses and inversely as the
square of the distance”.
Newton’s First Law of Motion : A body continues in its state of rest or of uniform motion in a straight line
unless compelled by an external force to change that state.
Newton’s Second Law of Motion : The rate of change of momentum is proportional to the impressed force
and takes place in the direction of the force.
Newton’s Third Law of Motion : To every action, there is an equal and opposite reaction, e.g. Rockets, recoil of a gun.
Newton’s Law of Cooling : States that the rate of loss of heat of a hot body is directly proportional to the difference of temperature between the body and the surrounding and is independent of the nature of the body.
Avogadro’s Hypothesis: It is a modification of Berzelius’ hypothesis. It states that equal volumes of all gases
under similar conditions of temperature and pressure contain equal number of molecules.
Boyle’s Law: States that the volume of certain gas is inversely proportional to the pressure at a constant
temperature. In other words, the product of pressure and volume remains constant provided the temperature
ratios to one another and also to the volumes of the
products, if gaseous - all the volumes being measured
under similar conditions of temperature and pressure.
Graham’s Law of Diffusion : States that the rates of diffusion of gases are inversely proportional to the square roots of their densities under similar conditions of temperature and pressure.
Law of Definite Proportions : A chemical compound is always found to be made up of the same elements
combined together in the same ratio by weight.
Law of Floatation : For a body to float, the following conditions must be fulfilled:
(1)The weight of the body should be equal to the weight of the water displaced.
(2) The centre of gravity of the body and that of the liquid displaced should be in the same straight line.
Newton’s Law of Universal Gravitation : States that “Every portion of matter attracts or tends to approach
every other portion of matter in the universe with a force proportional to the masses and inversely as the
square of the distance”.
Newton’s First Law of Motion : A body continues in its state of rest or of uniform motion in a straight line
unless compelled by an external force to change that state.
Newton’s Second Law of Motion : The rate of change of momentum is proportional to the impressed force
and takes place in the direction of the force.
Newton’s Third Law of Motion : To every action, there is an equal and opposite reaction, e.g. Rockets, recoil of a gun.
Newton’s Law of Cooling : States that the rate of loss of heat of a hot body is directly proportional to the difference of temperature between the body and the surrounding and is independent of the nature of the body.
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