Q1 of 15 Page 103

Whom should I pair with?

Group A


a. Temperature of a healthy human body


b. Boiling point of water


c. Room temperature


d. The freezing point of water


Group B


296 K


98.6° F


0° C


212° F

a. The temperature of a healthy human body– 98.6 F


Explanation: The globally accepted standard temperature of a healthy adult person at rest is taken as 98.6 Fahrenheit. It is equal to 37.0° Celsius temperature or 310.15 K.


b. The boiling point of water-212°F


Explanation: Boiling point of water is the temperature at which water is turned into steam. It is 212°F. In the Celsius scale, it is 100°C and in Kelvin scale, it is 373.15 K.


c. Room temperature-296 K


Explanation: Room temperature is a temperature at which usually the experiments are performed in laboratory. It is 296 K or 23°C or 72°F


d. Freezing point of water-0°C


Explanation: Freezing point of water is defined as the temperature at which water ism converted into ice. It is 0°C or 273.15 K or 32°F.


More from this chapter

All 15 →
1

Who is telling the truth?

a. The temperature of a substance is measured in Joules.


b. Heat flows from an object at a higher temperature to an object at a lower temperature.


c. Joule is the unit of heat.


d. Objects contract on heating.


e. Atoms of solid are free


f. The average kinetic energy of atoms in a hot object is less than the average kinetic energy of atoms in a cold object.

 1

You will find if you search.

a) A thermometer is used to measure..........


b) The apparatus used to measure heat is called a .............


c) Temperature is the measure of the ........... kinetic energy of the atoms in a substance.


d) The heat contained in a substance is the measure of the .............. kinetic energy of atoms in the substance.

 2

Nishigandha kept a vessel containing all the ingredients for making tea in a solar cooker. Shivani kept a similar vessel on a stove. Whose tea will be ready first and why?

 3

Write brief answers.

Describe a clinical thermometer. How does it differ from the thermometer used in the laboratory?