What type of thermometer is used in the laboratory?
Liquid in glass thermometers Liquid in glass thermometers A liquid in glass thermometer is the most commonly used temperature measuring device used in laboratories. This thermometer has a glass bulb attached to a sealed glass tube, known as the stem or capillary tube.
What are the 5 types of thermometer?
There are different types, but not all thermometers are right for your child.
- Digital thermometers. …
- Ear (or tympanic) thermometers. …
- Infared thermometers. …
- Strip-type thermometers. …
- Mercury thermometers.
What type of thermometer is always used in biology lab?
The way a laboratory thermometer works depends upon its type. They are generally a liquid-in-glass device, a bimetallic strip, an electronic thermistor thermometer, or infrared (IR) device.
What is thermometer and its uses?
A thermometer is an instrument that measures temperature. It can measure the temperature of a solid such as food, a liquid such as water, or a gas such as air. The three most common units of measurement for temperature are Celsius, Fahrenheit, and kelvin. The Celsius scale is part of the metric system.
How many types of laboratory thermometers are there?
The common types of laboratory thermometers include liquid-in-glass, bimetallic strip, infrared, and electronic devices. The common types of clinical thermometers are digital, disposable, glass and mercury, electronic ear, and forehead devices.
Why mercury thermometer is used in laboratory?
Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.
What are the 8 types of thermometers?
However, since they measure skin temperature rather than body temperature, they're significantly less accurate and should be avoided.
- Digital thermometer. …
- Oral thermometer. …
- Digital ear (tympanic) thermometer. …
- Forehead (temporal) thermometer. …
- App-based thermometer. …
- Pacifier thermometer. …
- Mercury (liquid in glass) thermometer.
Dec 15, 2020
What are the three main types of thermometers?
What are the different 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.
Dec 12, 2016
Where can a thermometer be used?
Ways to Take a Temperature
- Rectal. The thermometer is placed in the child's bottom. …
- Oral. The thermometer is placed in the mouth under the tongue. …
- Axillary. The thermometer is placed in the armpit.
- Tympanic. The thermometer is placed in the ear.
- Temporal artery. The thermometer scans the surface of the forehead.
What are the uses of temperature?
If we really want to specify how hot or cold something is, we must use temperature. For instance, how hot is melted iron? To answer that question, a physical scientist would measure the temperature of the liquid metal. Using temperature instead of words, like hot or cold, reduces confusion.
What is a laboratory thermometer Class 7?
Laboratory or Lab thermometers are the instruments that are used to measure the temperatures for scientific researches in schools and labs. Fig. – Laboratory Thermometer. Lab thermometers are designed to measure the temperatures, the boiling point and the freezing point of substances.
What is laboratory thermometer for Class 7th?
Laboratory or Lab thermometers are the instruments that are used to measure the temperatures for scientific researches in schools and labs. Lab thermometers are designed to measure the temperatures, the boiling point and the freezing point of substances.
Which thermometer is used in hospitals?
A medical thermometer (also called clinical thermometer) is used for measuring human or animal body temperature….Medical thermometer.
| Clinical thermometer | |
|---|---|
| A medical/clinical mercury thermometer showing the temperature of 37.7 °C (99.9 °F) | |
| Purpose | Measures body temperature |
Why only mercury is used in thermometer?
Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.
Which thermometer is the best?
A quick look at the best thermometers
- Best overall thermometer: CHOOSEEN Digital Forehead and Ear Thermometer 8-in-1.
- Best ear thermometer: Braun Thermoscan 7.
- Best oral thermometer: Vicks ComfortFlex Thermometer.
- Best forehead thermometer: Exergen Temporal Artery Thermometer.
What are the 4 types of temperature?
The Four Types of Temperature Scales
- 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. •••
Apr 26, 2018
What are the 3 types of temperature?
The three main temperature scales are Celsius, Fahrenheit, and Kelvin. Temperatures can be converted from one scale to another using temperature conversion equations.
Why is mercury used in thermometer?
Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.
What is laboratory thermometer Ncert?
Laboratory thermometer It is used to measure the temperatures in school or other laboratories for scientific purpose as they measure temperatures to a range higher than clinical thermometers. One such thermometer is known as the laboratory thermometer with a scale generally ranging from –10°C to 110°C.
What is laboratory thermometer in short form?
A laboratory thermometer is used to measure temperatures or the temperature changes of other objects. These thermometers are usually filled with red spirit rather than mercury. The range of a laboratory thermometer is generally from −10°C to 110°C.
What is the use of mercury 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.
Why alcohol is used in thermometer?
Ethanol has low freezing point. Hence, it is used in thermometers.
Is alcohol used in thermometer?
Ethanol-filled thermometers are used in preference to mercury for meteorological measurements of minimum temperatures and can be used down to −70 °C (−94 °F). The physical limitation of the ability of a thermometer to measure low temperature is the freezing point of the liquid used.
What is a mercury 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.
Which thermometer is best mercury or digital?
A digital thermometer is simple and convenient to use.
- It gives faster results than a mercury thermometer which usually takes time to heat up.
- It is safer as it doesn't contain any harmful chemicals.
- It gives more precise results than a mercury thermometer.
Nov 19, 2021
How many thermometers are there?
Three types of thermometers are alcohol, liquid crystal, and infrared radiation (pyrometer). The three main temperature scales are Celsius, Fahrenheit, and Kelvin.
What is laboratory thermometer class7?
Laboratory or Lab thermometers are the instruments that are used to measure the temperatures for scientific researches in schools and labs. Fig. – Laboratory Thermometer. Lab thermometers are designed to measure the temperatures, the boiling point and the freezing point of substances.
What is the use of laboratory thermometer Class 7?
Laboratory thermometer It is used to measure the temperatures in school or other laboratories for scientific purpose as they measure temperatures to a range higher than clinical thermometers. One such thermometer is known as the laboratory thermometer with a scale generally ranging from –10°C to 110°C.
How many types of laboratory thermometer are there?
The common types of laboratory thermometers include liquid-in-glass, bimetallic strip, infrared, and electronic devices. The common types of clinical thermometers are digital, disposable, glass and mercury, electronic ear, and forehead devices.
What is used in glass thermometers?
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.