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Temperature is measured by a device called thermometer.
An equal mass of different materials absorb or give out different quantities of heat, even if they are heated or cooled through the same range of temperature.This is also called specific heat capacity (abbreviated as SHC) in S.I. You can buy discounted CBSE Books by publishers like oswaal books and download free CBSE eBooks or read online.
t�trzJ/A�l�,����� Laboratory thermometer. They both contain mercury: Laboratory thermometer is used to take the reading of temperature in laboratory while clinical thermometer is used to measure the temperature of human body: They both have bulb at one end The warm air from the land moves towards the sea to complete the cycle. ... Q19: State similarities between the laboratory thermometer and the clinical thermometer.
A clinical thermometer has a temperature range of only 35ºC to 42°C.
Differences Clinical thermometer is used to measure human body temperature whereas laboratory thermometer is used to measure temperature of other object which has higher temperature than human body temperature. endstream endobj 205 0 obj <>/Metadata 20 0 R/OCProperties<><><>]/ON[236 0 R]/Order[]/RBGroups[]>>/OCGs[236 0 R]>>/PageLayout/OneColumn/Pages 202 0 R/StructTreeRoot 37 0 R/Type/Catalog>> endobj 206 0 obj <>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 207 0 obj <>stream We also compile CBSE Academics curriculum / syllabus, CBSE Results, CBSE News, CBSE Videos for you. That is the reason that a clinical thermometer has the range 35oC to 42oC.Heat flows from a hotter object to a colder object. Solution: Similarities. This water also gets hot and rises upward and water from the sides moves down. Hence more layers of cloths keep us warmer during cold winter.In places of hot climate it is advised that the outer walls of houses be painted white because a light colour absorbs very less radiant heat and we feel comfortable inside such houses due to lower temperature inside house.Heat is the total energy of the molecular motion of the substance and temperature is the measure of average energy of the molecular motion in the substance. Class 7 Science Solved Q&A. It states liquid expands on heating and contracts on cooling.This portal is designed to support Students and Teachers of Central Board of Secondary Education.
Back of Chapter Questions . View Answer Q24: Define specific heat. Clinical or Medical thermometers. 2. both are used to check temperature. The air from the sea is called the sea breeze.Dark surfaces absorb more heat and, therefore, we feel comfortable with dark coloured clothes in the winter whereas light coloured clothes reflect most of the heat that falls on them and, therefore, we feel more comfortable wearing them in the summer.There is a layer of air in between the blankets. From the sun the heat comes to us by a different process known as radiation which does not require any medium for heat transfer.The water is poor conductor of heat so do not heated by conduction. Access Answers of NCERT Solutions for Class 7 Science Chapter 4 – Heat. CBSE NCERT Solutions for Class 7 Science Chapter 4 .
Learning the important concepts is very important for every student to get better marks in examinations. CBSE Guess having millions of pages of educational papers provided by various educational institutions, teachers and educators from India and abroad. It is measured in joule or calories.A reliable measure of the hotness of an object is its temperature. This is called the land breeze.During the day, the land gets heated faster than the water. Solution: The similarities between the laboratory thermometer and the clinical thermometer are. The materials which do not allow heat to pass through them easily are poor conductors of heat known as insulators such as plastic and wood. 1. Share 5. Since air is bad conductor of heat prevent body heat to escape out, two thin blankets provides more heat than one thick blanket.Heat always from a body of higher temperature to a body of lower temperature, until the temperature of both bodies are equal, then the two bodies are said to be in thermal equilibrium.The property of thermal expansion of liquids is used in making thermometers. We consider three thermometers in the above three scales are dipped simultaneously in a liquid of certain temperature. When water is heated, the water became lighter. Unit of temperature is degree Celsius (°C), Fahrenheit and Kelvin (SI unit).Different types of thermometers are used for different purposes.
The concepts should be clear which will help in faster learning. 3. both display the temperature in celecious. ǞQT��ӔCn�� ��x��_��d�*i����ax̬zy1O
Having Listing of CBSE and Non CBSE Schools with Alumni associated with schools. Answer: Similarities Both thermometers are used to measure temperature and both of them use mercury. DISCLAMER: The information displayed is indicative but compiled with care and diligance. h�bbd```b``v��� �i'�d{ ���IM��-��t0�,n &�I=0�� ��@��5X����$#U@�� v'�͐"3���@$��~��6��������������(3(��L/ =6� State similarities and differences between the laboratory thermometer and the clinical thermometer. Range of laboratory thermometer is from -10°C to 110°C while range of clinical thermometer is from 35°C to 42°C. Let the temperatures recorded in the Celsius, Fahrenheit and Kelvin thermometers respectively be C, F and K. Now it can be proved that C / 5 = F- 32 / 9 = K- 273 /5.The quantity of heat absorbed or given out by a substance during a thermalchange depends on In between the layers of cloths there is trapped air.
However, CBSEGuess and Dreamzsop does not take the responsibility of how it is used or the the consequence of its use. At one end both of them have a bulb.
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