06 Mar Uses of Heat, Temperature and Thermometers
Uses of Heat is used differently at home and in industry. We use heat at home for ironing clothes, cooking and heating up the room during winter when it is cold. In an industry, uses of heat are used to melt metals to make cars and building materials.
Temperature is a measure of a degree of how hot or cold an object is. Temperature is nor a form of energy, unlike heat. Our normal body temperature is 37°C while the average room temperature is 28°C.
Thermometers are special instruments used to measure accurately the temperature of an object. A thermometer is made of a glass tube with a cylindrical bulb at one end. The end (bulb) of the thermometer is sealed. The glass tube is filled with either mercury (poisonous silvery liquid) or alcohol (colourless). If alcohol is used, it is usually coloured red to make it visible. The markings on the thermometer tell the temperature (in degree Celsius/°C) by the level of the liquid.
A clinical thermometer is used to measure human body temperature. There are many different types of clinical thermometers. One type of clinical thermometer is the liquid in glass thermometer. This thermometer is placed under the tongue or arm when used. The construction of this thermometer prevents the mercury from falling back so as to allow us to have time to read the temperature. Other types of clinical thermometer are the modern ear thermometer and liquid crystal thermometer.
Other temperatures measuring devices are the temperature sensor and data logger and pyrometer. This is an electrical device that responds to changes in temperature and is connected to a data logger. The pyrometer measures the temperature of hot objects by detecting the heat they give out.
Miracle Learning Centre might want to expedite you more realities physics tuition in Singapore ideas and examinations. We trust you have comprehended this physics educational exercise. Physics educational exercises are made to enable understudies to exceed expectations and we trust “You are a MIRACLE!” and you can do it as well.
We believe that students feel more attracted to a subject when they are taught using real-life examples. The modern age requires more practical based learning technique as the syllabus is getting modernized every day and it is focusing on making students more employable. And keeping that in mind, we at Miracle Learning Centre have introduced the most innovative classes for A level physics tuition, O level physics tuition, JC physics tuition in Singapore where you are not just going to learn Physics but you will also get to know that why you should learn those topics.