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Physics

Evaporation and application in Referigeration

Definition of Evaporation Evaporation is a change of state from the liquid to the gaseous state. It takes place at […]

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Physics

Latent heat

Latent Heat Latent heat or hidden heat is experienced when there is a change of state ( melting, vaporization, condensation, […]

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Physics

Measurement of Heat, Heat capacity and Specific Heat capacity

Measurement of Heat Energy Heat is a form of energy called thermal energy that flows due to temperature difference. It […]

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Physics

Molecular Explanation of Temperature

Molecular Explanation of Temperature According to the molecular theory solids vibrate about their mean position, when heat is applied to […]

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Physics

Temperature Scales

Temperature Scales Celsius scale:The lower and upper fixed points are 00C and 1000C.  The fundamental interval is divided into 100 […]

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Physics

Types of Thermometer – Liquid in Glass, Constant volume gas, Platinum and Thermocouple thermometers

Types of Thermometer The liquid-in-glass thermometer The liquid-in-glass thermometer uses liquid(mercury) as thermometric substance. In which the change in volume of the liquid […]

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Physics

Temperature and Thermometer

Definition of Temperature Temperature is a measure of the degree of hotness or coldness of a body.  It is measured […]

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Physics

Wheel and Axle, and Gear

Wheel and Axle Definition of Wheel and Axle A wheel and axle is really two machines in one because it […]

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Physics

Inclined Plane, Hydraulic Press, Screw

An inclined plane is a sloping surface used for pulling or pushing a load up, rather than lifting them vertically. […]

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Physics

Lever and Pulley

Lever In a lever the relative positions of Force(F), Effort(e) and Load(L) may vary and this leads to different types […]