Fill in the blanks:
a. The hotness of an object is determined by its _____.
b. Temperature of boiling water cannot be measured by _______ thermometer.
c. Temperature is measured in degree ______.
d. No medium is required for transfer of heat by the process of _______.
e. A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of _______.
f. Clothes of ______ colours absorb heat better than clothes of light colours.
a. The hotness of an object is determined by its temperature.
The more is the Temperature of object, the more it will be hot and lesser the temperature of object, lesser will be hotness.
b. Temperature of boiling water cannot be measured by clinical temperature.
Because the range of clinical temperature (350C to 420C) is less and the temperature of boiling water is high. So, it can’ t be measured using clinical temperature.
c. Temperature is measured in unit Celsius.
The temperature is measured with the help of Celsius scale and the symbol is indicated by 0C.
d. No medium is required for transfer of heat by the process of Radiation. There is no requirement of any medium to transfer heat in case of radiation.
e. A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of conduction
Because cold steel spoon is a body of low temperature and hot milk acts as a body of high temperature. So, there is a transfer of heat from hot milk to cold steel spoon and this process is known as conduction.
f. Clothes of dark colors absorb heat better than clothes of light colors. This is because dark color absorbs more heat than light colored objects as light colored objects reflects most of the heat that falls on them.