Homework Sourse1 a Distinguish between heat and temperature b Distinguish b
Solution
Ans)
a)distinguish between heat and temperature
HEAT
TEMPERATURE
1.Heat is generally the measurement of energy or thermal energy in a body
2.heat flows from a hotter object to colder one.
3.Heat is denoted by the symbol ‘Q’.
4.SI unit of heat is Joule ‘J’.
5.Heat is measured by using Calorimetry.
1.temperature is measurement of heat or thermal energy of any molecules in a substance
2.temperature refers to the measurement of hotness and coldness in a object by using thermometer.
3.Temperature is denoted by the symbol ‘T’.
4.SI unit of temperature is Kelvin .
4. Temperature is measured by using thermometer.
b)distinguish between heat and internal energy
Internal energy is the energy stored in a body. It increases when the temperature of the body rises, or when the body changes from solid to liquid or from liquid to gas. Internal energy is the sum of kinetic and potential energy of all particles in the body. Unit of internal energy: joule (J)
Heat is the energy transferred from one body to another as a result of a temperature difference. When two bodies of different temperatures touch each other, energy is transferred from the hot body to the cold body. Typically the two bodies reach the same temperature. The bodies are then said to be in thermal equilibrium.
c) Heat flow is from higher temperature towards the cooler temperature.
| HEAT | TEMPERATURE |
| 1.Heat is generally the measurement of energy or thermal energy in a body 2.heat flows from a hotter object to colder one. 3.Heat is denoted by the symbol ‘Q’. 4.SI unit of heat is Joule ‘J’. 5.Heat is measured by using Calorimetry. | 1.temperature is measurement of heat or thermal energy of any molecules in a substance 2.temperature refers to the measurement of hotness and coldness in a object by using thermometer. 3.Temperature is denoted by the symbol ‘T’. 4.SI unit of temperature is Kelvin . 4. Temperature is measured by using thermometer. |
