Physics IX Notes Chapter 8 Thermal Properties of Matter

Physics IX Notes Chapter 8 Thermal Properties of Matter

Physics IX Notes Chapter 8 Thermal Properties of Matter for Pakistani all boards. Punjab, Sindh, kpk, and Baluchistan.



Define heat and temperature? Also, show the difference b/w them?Heat:- The form of energy which transfers from one body to another body due to difference of temperature between them is called heat
(OR) The total K.E of molecules of a body is called heat.

Temperature:-The degree of coldness or hotness a body concerning some standard is called temperature (OR) The average K.E of molecules of a body is called temperature.

Difference b/Wheat and temperature.

S.NOHeatS.NOTemperature.1it is the total K.E of molecules of a body.1It is the average K.E of molecules of a body.2It gives the sensation of warmth2It is the degree of coldness or the hotness of a body.3Its units are joules and calories.3Its units are kelvin, centigrade, and Fahrenheit.

Define thermometry? Also, explain thermometric property? And the temperature scale?Thermometric: – The branch of physics which deals with the measurement of temperature.
Thermometric property:-we measure temperature by an instrument called thermometer. For the construction of a thermometer, we use certain properties of matter which decrease or increase uniformly with the temperature change, and this property is used for measurement of temperature which is known as thermometric property.

Usually, we use the property of expansion. For example, the expansion of mercury and alcohol is a uniform that is mostly used for measurement of temperature in thermometers.
Temperature Scale:- see Q4What is the thermometer? Also, explain liquid in glass thermometer and clinical thermometer?Thermometer:- The instrument which is used for measurement of temperature is called a thermometer; it is based on the principle of expansion of liquids on heating.

the liquid in glass thermometer:- it consists of a graduated glass tube whose one end is sealed and the other is filled with a bulb. And glass is filled with mercury. When the bulb of the thermometer is heated the mercury expands up and we can easily record the reading liquid in a glass thermometer is most commonly used in labour tries and it has a temperature of – 10oc to 110o c.

clinical thermometer:- this thermometer consists of a glass stem whose one end is fitted with a bulb and others are sealed. The stem is filled with some standard liquids like mercury etc.
A small bend is given to the glass stem near the bulb so that it prevents the easy flow of mercury toward the bulb.

This thermometer is mostly used by doctors and nurses; its scale only extends over a few degrees on either side of normal body temperature 37oc or 98oF. Therefore the range of a clinical thermometer is from 35oc to 43oc or from 95oc to 110of.what is meant by the thermometric scale? Also, discuss different sales?Thermometric or temperature scale:- the scale which is made for the measurement of temperature is called temperature or thermometric scales.

There are two reference points which are called fixed points and the distance b/w these points are divided into small parts and each has given a specific numerical value. There are three scales of temperature which are given below.

Thermal Properties of Matter pdf download

Physics IX Notes Chapter 7 Properties of Matter



Fakhr e Alam
https://class9notes.perfect24u.com/physics-ix-notes-chapter-8-thermal-properties-of-matter/

Comments

Post a Comment

Perfect 24 U

Loading...

Popular posts from this blog

English Class 9 Notes Chapter 2 for kpk

Image
English Class 9 Notes Chapter 2 for kpk comprehension, short question, excersice, long question, writting, and grammer. English Class 9 Notes Chapter 2 Comprehension How is the youth standard-bearer of a nation?The youth of any nation is its standard-bearers, as their energy, if channelized in a proper direction, can bring a great change in the social, economic, and political condition of the nation.According to Iqbal how can the youth change themselves?According to Iqbal, the youth can change themselves by becoming their own emperors. He expresses that if a man becomes emperor of himself then he can lead the world in his own direction. He was aware of the fact that if the youth of the Ummah had structured their real destiny, then they could have led the Muslims of the Subcontinent out of the pit earlier than they did.Read the 3rd paragraph and write down the key idea.The youth of Iqbal is a man of great character. He is determined and straightforward. He is like the Shaheen (eagle). H...
Read more

Bise Lahore Class 9th English Notes Chapter 12

Image
Bise Lahore Class 9th English Notes Chapter 12 Three Days to See Daffodils Matric (Science with Biology)  Lahore Board , Punjab board | Grade 9 Short & long question. Q.1)  Who was Helen Keller? Answer: Helen Keller was a woman who, due to an illness, became deaf and blind when she was 19 months old. She was a remarkable woman who has many publications to her credit. Q.2)  Describe the thought expressed by the author in the first paragraph. Answer: The author expressed her thought in the first paragraph that it would be an excellent rule to live each day as if we were going to die tomorrow. Such an attitude would emphasize the value of life. Q.3)  What makes you feel that the author is sad and depressed? Answer: I feel that the author is sad and depressed when she asked her friend about any notable thing which she has observed while walking in the woods and her friend replied "nothing." She is sad and depressed because people who are blessed with the sense of sight just i...
Read more

Unit 6 Nasiruddin English Notes for Class 9th

Image
Unit 6 Nasiruddin English Notes for Class 9th 2021 shams guide Pre-Reading, Excercise, comprehension, multiple-choice questions, vocabulary, and grammar. Pre-Reading - Do you like humorous stories? - Have you ever heard about Nasirruddin? Reading Every year Nasirruddin day is celebrated in Turkey with great pomp and show. The age in which he lived is not exactly known. There are even doubts about the country of his birth. The Iranians claim that he was an Iranian. The Turks have their own claim. The latest claim is that of the Russians who say that he was born in Bukhara. Whatever his place of birth and nationality might have been, the fact remains that his anecdotes or famous all over the world. Several volumes of stories about Nasirruddin have been published in England. Translation of stories relating to the funny situations of his life has been published in Chinese. Unit 6 Nasiruddin English Notes for Class 9th 2021 Unit 6 Downalod Now Fakhr e Alam https://class9notes.perfect24u.com...
Read more