Heat

Upon completion of this lesson, student must be able to:

  • Describe heat and temperature.
  • Differentiate heat and temperature.
  • Calibrate thermometer in all the scales.
  • Describe various methods of heat transfer.
  • Distinguish between laboratory and clinical thermometer.
  • Solve numerical related to temperature scale.

Notes

Heat and temperature

We use the expressions of hot and cold in our daily life on a number of occasions. Heat is the sum of kinetic energy of all molecules of a substance whereas the degree of hotness and coldness of an object is called its temperature. This note presents information about heat and temperature.

Thermometer

A device, which measures the temperature of a body, is called thermometer. A mercury thermometer is used to measure the temperature of extreme hot places. An alcohol thermometer is used to measure the temperature of extreme cold places. This note provides us with an information about thermometer and its uses.

Types of Thermometer According to Construction

A thermometer is used to measure the temperature of human body. Thermometer is used to measure the maximum and minimum temperature of a particular place. Laboratory thermometer consists of a bulb with a long capillary tube. This note describes the types of thermometer and its uses.