Top 50 Oneliner General Science Points

Top 50 Oneliner General Science Points

Here we are proving you some unique content which is generally not available. Our Dedicated Team shortlisted the most frequently asked points from General Science & Technology from which you may get some common questions in comming SSC CHSL or SSC CGL 2018- 2019 and Other Competitive Exams. These Points are shortlisted from Physics and we assembled in such a way that it would help you to a certain level. 

• Relation between the colour and the temperature of a star is given by Wean’s Displacement Law.
• The process in which no heat enters and leaves the system in termed as Adiabatic Process.
• Mode of transmission of heat in which heat carried by moving particles is known as convection.
• The Mechanical equivalent of heat J is a conversion factor.
• Rate of diffusion is faster in gases than in liquids and gases.
• Water is usual as coolant in the radiator of a car engine because it has high specific heat.
• At absolute zero temperature, the kinetic energy of the molecules becomes zero.
• Thermal Radiations are electro-magnetic wave belonging to infrared region.
• A white and smooth surface is bad absorber and good reflector of heat.
• The saturated vapour pressure of water at 100 Degree Celsius is 760 mm of Hg.
• The clouds float in the atmosphere because of their low temperature.
• Low temperatures (Cryogenics) find application in space travel, surgery and magnetic levitation.
• When water is heated from 0 Degree Celsius its volume first decreases and then increases.
• The change of a solid into vapour directly is called Sublimation.
• A cooling System (Radiator) in a Motor car works by Convection Principle.
• The water from a hand pump is warm in winter because the temperature inside the earth is higher than the atmospheric temperature.
• White colour of heat radiation represents the highest temperature.
• The boiling point of a liquid can be reduced by decreasing the pressure on the liquid.
• The temperature of a body is an indicator of the average kinetic energy of the molecules of the body.

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• A real gas can be liquefied by the application of pressure when its temperature is at critical temperature.
• Nights are cooler in deserts than in the plains as sand radiates heat more quickly than the earth.
• Clear nights are colder than cloudy nights because of radiation.
• A gas thermometer is more sensitive than a liquid thermometer because a gas expands more than a liquid.
• The speed of light with the rise in the temperature of the medium is unaltered.
• Clothes keep us warm in winter as they prevent the heat of the body from escaping.
• Metal tea pots have wooden handles as wood is a bad conductor of heat.
• White clothes are cooler than black ones as they reflect all the lights that reach them.
• Water is used in hot water bags as it has high specific heats. 
• At upper atmosphere, an astronaut feels extremely cool.
• The wavelength of the radiation emitted by a body depends upon the temperature of the surface.
• Mechanical Waves can be both transverse and longitudinal.
• Transverse waves can propagate not in a gas but in a metal.
• Electromagnetic waves do not require any material medium for its propagation.
• The period of a pendulum depends upon length.
• The phenomenon in which the amplitude of oscillation of pendulum gradually decreases is known as damping.
• The product of the time period of a wave and its frequency is unity.
• The temperature of the water at bottom of a waterfall is higher than that at the top as kinetic energy of falling water is converted into heat.
• The energy that can harness heat stored below the earth’s surface is known as Geo-Thermal Energy.
• The temperature of boiling water in a steam engine may be high because there is high pressure inside the boiler.
• The first law of thermodynamics is the law of conservation of energy.
• Stationary Wave is formed by two waves of same frequency travelling in opposite directions.
• Ultrasonic waves are used for stirring liquid solutions as they can produce perfectly homogeneous solution.
• Human cannot hear Ultrasonic waves.
• Laplace’s Correction in the formula for the speed of sound given by Newton was needed as sound waves propagate adiabatically.
• With the rise of temperature, the speed of sound in a gas increases.
• Speed of sound in a gas is proportional to square root of adiabatic elasticity.
• When a source of sound is in motion towards a stationary observer, the effect observed is – increase in frequency of sound only.
• The quality of sound produced by an instrument depends on the number of overtones.
• Doppler Shift in Frequency does not depend upon the distance of the source from the listener.
• The velocity of sound is generally greater in solids than in gases because the elasticity of solids is very high.
• Sound Waves of wavelength greater than that of audible sound are called Infrasonic Waves.
• The waves moving from a Sitar to a listener in air are longitudinal progressive.
• Beats occur because of interference.
• The same notes being played on Sitar and Veena differ in quality.
• Decibel is a unit of intensity.
• Instrument used to study the behavior of a vibrating string is Sonometer.