What is an analog thermometer used for?
Traditional analog thermometers measure temperature by using materials that change in some way when they are heated or cooled. The two most common analog thermometers are the spring or dial type and the bulb or tube type. A dial thermometer uses a coiled piece of metal that is sensitive to heat.
How does a analog thermometer work?
A thermometer has a glass tube sealed at both ends and is partly filled with a liquid like mercury or alcohol. As the temperature around the thermometer’s bulb heats up, the liquid rises in the glass tube. When it is hot, the liquid inside the thermometer will expand and rise in the tube.
What is a thermometer definition for kids?
A thermometer is the instrument used to tell the air temperature. A thermometer is usually made up of a small, hollow glass tube. At the bottom of the tube is a bulb, which holds a liquid such as alcohol or mercury. A decrease in heat lets the liquid contract, moving down the tube.
What’s an analog thermometer?
An analog thermometer is one that continually varies its reading as the temperature changes.
What is difference between analog and digital thermometer?
In analog thermometers, liquid mercury is placed in a bulb at the end of the glass tube. In the case of digital thermometers, different methods are used to develop advanced circuits and internal systems which help them to provide the results near instantly.
How can an analog thermometer be used to measure temperature?
Place the protective cover on the tip of the thermometer. Gently insert the thermometer until the ear canal is fully sealed off. Press and hold down the button for 1-2 seconds until you hear a beep (follow the manufacturer’s instructions). Remove the thermometer, discard the cover, and record temperature and time.
What is inside an analog thermometer?
By the word Analog thermometer we usually mean to say mercury thermometer due to the silvery white liquid “mercury” inside it. Mercury is one of the 92 naturally occurring elements that become liquid at room temperature and remains in liquid state throughout a wide range of temperature.
What is thermometer very short answer?
A thermometer is a tool that measures temperature — how hot or cold something is. Thermometers are used to see if you have a fever or tell you how cold it is outside. Made up of thermo (heat) and meter (measuring device), the meaning of the word thermometer is pretty straightforward.
What is in a thermometer?
In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature.
How do you read an analog thermometer?
Reading the glass thermometer (that is, determining the temperature shown) is done by holding the thermometer horizontally by the stem end (the end opposite the bulb) at eye level and rotating the thermometer until the mercury in the shaft can be clearly seen.
What do you mean by an analog thermometer?
An analog thermometer is one that continually varies its reading as the temperature changes. Frequently, these were filled with mercury as this metal… See full answer below. Our experts can answer your tough homework and study questions.
What kind of thermometer is used to measure air temperature?
Temperature is measured by an instrument called a thermometer. Most common for measuring air temperature is the liquid-in-glass thermometer, which consists of a glass tube enlarged at the bottom into a bulb that is partially filled with mercury.
How does a digital thermometer tell the temperature?
Digital thermometers are different because they use a computer chip to tell the temperature instead of mercury. You would normally have to wait three whole minutes for the mercury to heat up and give you a reading.
What do the numbers mean on a thermometer?
A temperature degree is marked by a small symbol beside the number that indicates the temperature, like this: 45°. There are two different scales for measuring temperature: Celsius and Fahrenheit. When reading a thermometer, the first thing to check is which scale is being used.