Physics
*The branch of science concerned with the nature and properties of matter and energy
Ans : Physics
*Scientists known as fathers of Physics
Ans : Einstein,Newton and Galileo
*Father of Nuclear Physics
Ans : Ernest Rutherford
*Father of Indian Nuclear Programme
Ans : Homi.J.Bhabha
UNITS AND MEASUREMENTS
*The chosen standard used for measuring a physical quantity is called
Ans : Unit
*Units are classified into
Ans : Two
*Two types of Units are
Ans : Fundamental Units and Derived Units
*The Units of fundamental quantities which can't be derived from any other quantities
Ans : Fundamental Units
*Fundamental units can be expressed in 3 kinds of measuring systems such as
Ans : CGS, MKS and FPS
* The Units which are derived from fundamental units
Ans : Derived Units
FUN..................
*The branch of science concerned with the nature and properties of matter and energy
Ans : Physics
*Scientists known as fathers of Physics
Ans : Einstein,Newton and Galileo
*Father of Nuclear Physics
Ans : Ernest Rutherford
*Father of Indian Nuclear Programme
Ans : Homi.J.Bhabha
UNITS AND MEASUREMENTS
*The chosen standard used for measuring a physical quantity is called
Ans : Unit
*Units are classified into
Ans : Two
*Two types of Units are
Ans : Fundamental Units and Derived Units
*The Units of fundamental quantities which can't be derived from any other quantities
Ans : Fundamental Units
*Fundamental units can be expressed in 3 kinds of measuring systems such as
Ans : CGS, MKS and FPS
* The Units which are derived from fundamental units
Ans : Derived Units
FUN..................
HUMIDITY
*The amount of water vapour present in air is called
Ans : Humidity
*When humidity occurs, perspiration is
Ans : Maximum
*Humidity indicates perspiration, dew or fog etc
MELTING POINT
*The process by which a substance is changed from solid state to liquid state is, called
Ans : Melting
*The fixed temperature at which a substance is changed from solid state to liquid state is called
Ans : Melting point
*Melting point of ice can be raised by the decrease of
Ans : Pressure
■ MELTING
*Mercury - -39 degree C
*Alcohol - -114 degree C
*Ice - -0 degree C
BOILING POINT
*When liquid boils and changes itself into vapour at standard atmospheric pressure is called
Ans : Boiling point
*When pressure incre..................
*The amount of water vapour present in air is called
Ans : Humidity
*When humidity occurs, perspiration is
Ans : Maximum
*Humidity indicates perspiration, dew or fog etc
MELTING POINT
*The process by which a substance is changed from solid state to liquid state is, called
Ans : Melting
*The fixed temperature at which a substance is changed from solid state to liquid state is called
Ans : Melting point
*Melting point of ice can be raised by the decrease of
Ans : Pressure
■ MELTING
*Mercury - -39 degree C
*Alcohol - -114 degree C
*Ice - -0 degree C
BOILING POINT
*When liquid boils and changes itself into vapour at standard atmospheric pressure is called
Ans : Boiling point
*When pressure incre..................
IMPORTANT INSTRUMENTS AND THEIR USES
*Altimeter : an apparatus used in aircraft for measuring altitudes
*Accumulator : used for storing electrical energy
*Amplifier helps to increase the strength of electrical signals
*Ammeter : used to measure Electric current
*Anemometer : instrument for measuring the force and velocity of wind
*Audiometer : an instrument to measure intensity of so
*Audiophone : an instrument required to amplify sound and is worn to compensate for poor hearing
*Barograph : for continuous recording of atmospheric pressure
*Barometer is an apparatus used for measuring the atmospheric pressure
*Calorimeter : an instrument used for measuring quantities of heat
*Cardiogram a medical instrument used for tracing heart movements
*Commutator : split ring which forms the main part of a D.C. Dynamo
*Crescograph : is an instrument for recording growth of plants[/..................
*Altimeter : an apparatus used in aircraft for measuring altitudes
*Accumulator : used for storing electrical energy
*Amplifier helps to increase the strength of electrical signals
*Ammeter : used to measure Electric current
*Anemometer : instrument for measuring the force and velocity of wind
*Audiometer : an instrument to measure intensity of so
*Audiophone : an instrument required to amplify sound and is worn to compensate for poor hearing
*Barograph : for continuous recording of atmospheric pressure
*Barometer is an apparatus used for measuring the atmospheric pressure
*Calorimeter : an instrument used for measuring quantities of heat
*Cardiogram a medical instrument used for tracing heart movements
*Commutator : split ring which forms the main part of a D.C. Dynamo
*Crescograph : is an instrument for recording growth of plants[/..................
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