Answer: Fix a few small wax pieces on the rod. (f) Clothes of Dark colours absorb heat better than clothes of light colours. (d) No medium is required for transfer of heat by the process of Radiation. to the surroundings is radiation. In a clinical thermometer kink plays an important role. Answer: iii – b, Black or Dark coloured objects absorbs more heat. (c) copper is a better conductor of heat than the stainless steel. It has a scale from 35°C to 42°C. Clinical thermometer . Answer: This bulb contains mercury. Write a neat diagram of clinical thermometer and label the parts. This experiment shows that heat is transferred from the hotter end to the colder end. Working principle of both the thermometer is same. Question 1. Observe. Heat the water by placing the candle just below the flask. A clinical thermometer consists of a long, narrow, uniform glass tube. Clam the rod to a stand or place one end of the rod in between two bricks. Answer: The normal human body temperature is 37˚C; which can fluctuate between the ranges 35˚C to 42˚C. Give example. Lesson Plan in Mathematics Grade 5 Grade V – Acacia (7:50-8:50) Molave (8:50-9:50) I. Stainless steel pans are usually provided with copper bottoms. (d) does not become cold., Clinical thermometer has a kink near the bulb while there is nokink in the laboratory thermometer. What are the precautions should we take while using the clinical thermometer ? Write the construction of clinical thermometer. The process by which heat is passed from the hotter end to colder end in solids. Transfer of heat from hot bodies like pan, plate, burner etc. The temperature of the mixture will be The temperature should always be stated with its unit °C. We can say that it absorbs less amount of heat and keeps the house cool. Parts of a thermometer 1. In places of hot climate, it is advised to paint the outer walls of houses as white because a light colour such as white reflects back most of the heat that falls on it. It has a bulb at one end. Conductors : copper, aluminium and iron. Define Sea breeze. In places of hot climate it is advised that the outer walls of houses be painted white. Explain. Take a round bottom flask. Ensure that before use the mercury level is below 35°C. So wearing more layers of clothing during winter keeps us warmer than wearing just one thick piece of clothing. Label the parts of the thermometer using the words from the box. 5. State similarities and differences between the laboratory thermometer and the clinical thermometer. Now place the thermometer under the tongue of the person. Answer: Write the construction of clinical thermometer. Why a clinical thermometer has a kink? Dip the thermometer in the liquid so that the bulb is immersed in the liquid but does not touch the bottom or the sides of the container. So it seprates the mercury at high temperature and cool mercury and allows the user to note the reading when the thermometer is taken out. Observe the movement of mercury in the thermometer, wait till the mercury thread becomes steady. Answer: Answer: The use of the thermometer depends very much on the reason why it was manufactured. Look at Fig. Answer: (c) becomes cold by the process of radiacios. draw a neat and labelled diagram of a laboratory thermometer - Physics - TopperLearning.com | 99cxqufyy Hold the thermometer vertically. This is known as Conduction. This is the temperature of that person. An iron ball at 40°C is dropped in a mug containing water at 40°C. Draw the neat diagram and Label the parts. Answer: Question 10. It transfers heat to its other end by the process of Conduction. Eg : Wood, plastic etc.. (d) between 30°C and 50°C Question 4. Answer: Question 7. Thermometer should be washed before and after use, preferably with an antiseptic solution. This is called the Sea breeze. 3. 4. The transfer of heat without any media is called Radiation. (a) copper bottom makes the pan more durable. It is the land breeze. Question 3. 1. The heat will Heat the other end of the rod by a candle. The Jerks will bring the level of mercury down. Question 7. The heat from the candle side passes towards the other end by dissolving wax pieces on the rod. (a) The hotness of an object is determined by its Temperature. Question 13. This is the temperature of the given liquid at that time. A labeled diagram shows an image of the device and all parts including he tube and bulb are labeled. 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It has a scale from 35°C to 42°C. Mercury is used in both thermometers to measure temperature. Question 12. Question 3. (b) not flow from iron ball to water or from water to iron ball. Clinical thermometers are meant for clinical purposes. The 4 most important are: These pieces should be at nearly equal distances. Draw a neat labeled diagram of a clinical thermometer and explain its construction - Science - Heat Fill in the blanks : A wooden spoon is dipped in a cup of ice cream. More layers of thin clothes will allow more air to get trapped and as a result we will not feel cold. (b) Temperature of boiling water cannot be measured by a Clinical thermometer thermometer. Question 1. Laboratory thermometer has temperature range from -10°C to 110°C where as clinical thermometer has temperature range from 35°C to 42°C.