A laboratory thermometer is used to measure the boiling point and freezing point during science experiments. It is also used to measure the temperature of substances.
How do you use a thermometer example?
What is thermometer chemistry?
CHEMISTRY GLOSSARY Thermometers are devices for measuring temperature. Linear and volume thermal expansion are macroscopic properties of matter, which can be easily measured, relative to measurements of microscopic properties, on the basis of which, temperature is defined.
What are the 5 uses of thermometer?
– To measure the outdoor temperature. – To measure body temperature during a physical exam at the doctors. – To measure body temperature when someone is ill to determine if he/she has a fever. – To measure the temperature of an oven.
How is the temperature measured?
The more energy of motion the molecules have, the higher the temperature you feel in the air. Air temperature is measured with thermometers. Common thermometers consist of a glass rod with a very thin tube in it. The tube contains a liquid that is supplied from a reservoir, or “bulb,” at the base of the thermometer.
How do you read a thermometer temperature?
Most thermometers have two scales for temperature, Fahrenheit and Celsius. Read the numbers for °F (degrees of Fahrenheit). Each long line is for 1°F temperature. The four shorter lines between each long line are for 0.2°F (two tenths) of a degree of temperature.
What is the basic principle of thermometer?
A thermometer works on the principle that solids and liquids tend to expand with temperature. When a thermometer lamp is immersed in a given solution or substance, mercury begins to rise. This increase in mercury is studied on a temperature scale.
What are the 3 main types of thermometers?
- Digital thermometers.
- Ear (or tympanic) thermometers.
- Infared thermometers.
- Strip-type thermometers.
- Mercury thermometers.
What is the importance of thermometer?
Why are thermometers important? Thermometers measure body temperature which is important in medicine. Many diseases and conditions, from the common cold to cancer or COVID-19, can create an elevated temperature or fever, which is simply the body’s way of fighting an infection.
What are the 7 types of thermometer?
- Digital thermometers. Digital thermometers are regarded as the fastest and most accurate type of thermometer.
- Electronic ear thermometers.
- Forehead thermometers.
- Plastic strip thermometers.
- Pacifier thermometer.
- Glass and mercury thermometers.
What are the 4 types of temperature?
- Fahrenheit Scale. ••• The Fahrenheit scale of temperature is the common form of temperature measurement used in the United States and some parts of the Caribbean.
- Celsius Scale. •••
- Kelvin Scale. •••
- Rankine Scale. •••
What are the 3 ways to measure temperature?
There are three commonly used measurement systems: Fahrenheit, Celsius and Kelvin.
What are units for temperature?
The most common scales are the Celsius scale (formerly called “centigrade”, with the unit °C), the Fahrenheit scale (with the unit °F), and the Kelvin scale (with the unit K), the latter being used predominantly for scientific purposes and is the primary temperature scale defined by the International System of Units ( …
What temperature is normal?
Normal body temperature ranges from 97.5°F to 98.9°F (36.4°C to 37.2°C). It tends to be lower in the morning and higher in the evening. Most healthcare providers consider a fever to be 100.4°F (38°C) or higher.
What is a thermometer and how does it work?
How does a thermometer tell the temperature? A thermometer measures temperature through a glass tube sealed with mercury that expands or contracts as the temperature rises or falls. The tiny size of the bulb and micro-fine size of the tube help the mercury reach the temperature of what it is measuring very rapidly.
Which two liquids are used in thermometers?
Thermometer liquids are mercury and alcohol.
How do you measure the temperature of a liquid?
Measuring temperature is usually done using thermometers or thermocouples. Thermometers, usually made of glass, contain a narrow capillary tube and a liquid whose density changes predictably with temperature. The density of the material determines the volume it will occupy.
What thermometer is used to measure the temperature of a liquid?
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.
Why mercury is used in thermometer?
Mercury is used in thermometers because It has a high coefficient of expansion so that even a small rise in temperature brings about sufficient expansion which can be detected in the capillary of the calibrated part of the thermometer.
Who discovered thermometer?
Galileo Galilei invented a rudimentary water thermometer in 1593 which, for the first time, allowed temperature variations to be measured. In 1714, Gabriel Fahrenheit invented the first mercury thermometer, the modern thermometer.
What type of thermometer is best?
Digital thermometers are the most accurate way to measure body temperature. There are many types, including oral, rectal, and forehead, plus many that are multifunctional. Once you decide on the type of thermometer you want, you can think about design, extra features, and price.
Where is Kelvin used?
The Kelvin scale is used widely in science, particularly in the physical sciences. In everyday life, it is most often encountered as the “color temperature” of a lamp. An old-fashioned incandescent bulb, which puts out yellowish light, has a color temperature of about 3,000 K.
What is temperature called?
Temperature is the measure of hotness or coldness expressed in terms of any of several scales, including Fahrenheit and Celsius. Temperature indicates the direction in which heat energy will spontaneously flow—i.e., from a hotter body (one at a higher temperature) to a colder body (one at a lower temperature).
What degree is a temperature?
The medical community generally defines a fever as a body temperature above 100.4 degrees Fahrenheit. A body temp between 100.4 and 102.2 degree is usually considered a low-grade fever.
How do you write temperatures?
Referring to Temperature Measurements Degree measures of temperature are normally expressed with the ° symbol rather than by the written word, with a space after the number but not between the symbol and the temperature scale: The sample was heated to 80 °C.