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Q1. The normal body temperature of a healthy human being is about:
The normal body temperature of a healthy human being is about 37°C (98.6°F). This temperature is maintained by the body’s internal mechanisms and can vary slightly from person to person. It is measured using a clinical thermometer.
Q2. The normal body temperature of a healthy human being in Fahrenheit is:
The normal body temperature of a healthy human being is about 98.6°F on the Fahrenheit scale. This is the equivalent of 37°C on the Celsius scale. Body temperature can vary throughout the day and with activity.
Q3. The normal body temperature of a healthy human being in Kelvin is:
The normal body temperature of a healthy human being (37°C) is equal to approximately 310 K. This is because 0°C is equal to 273.15 K, and adding 37 gives 310.15 K. The Kelvin scale is used in scientific calculations.
Q4. The normal body temperature of a healthy human being in Celsius is:
The normal body temperature of a healthy human being is 37°C on the Celsius scale. This is the standard temperature used in most countries for medical purposes. Any significant deviation from this temperature may indicate illness.
Q5. The temperature of a human body is measured using a:
A clinical thermometer is specially designed to measure the temperature of the human body. It has a narrow range from about 35°C to 42°C and has a kink that prevents the mercury from falling back quickly. This allows the user to read the temperature after removing it from the body.
Q6. The temperature of animals can be measured using a:
The temperature of animals can be measured using various types of thermometers. Clinical thermometers can be used for large animals, while rectal thermometers are commonly used for pets and livestock. The method used depends on the size and type of animal.
Q7. The SI unit of temperature is the:
The SI unit of temperature is the Kelvin (K). It is the base unit of temperature in the International System of Units. The Kelvin scale starts at absolute zero, which is the point where particles have minimum possible energy.
Q8. The SI unit of temperature is represented by the symbol:
The SI unit of temperature is the Kelvin, represented by the symbol ‘K’. Unlike Celsius and Fahrenheit, the Kelvin scale does not use the degree symbol. It is used in most scientific calculations.
Q9. The temperature scale commonly used in most countries for daily life is the:
The Celsius scale is the most commonly used temperature scale in our daily life. It is used in weather reports, cooking and many other everyday applications. On this scale, the freezing point of water is 0°C and the boiling point is 100°C.
Q10. The temperature scale commonly used in the United States for daily life is the:
The United States primarily uses the Fahrenheit scale for weather, cooking and many other applications. This is a legacy of the early use of the Fahrenheit scale in the country. Other countries that use the Fahrenheit scale include the Bahamas and Belize.
Q11. The Celsius scale is also known as the:
The Celsius scale is also called the centigrade scale because it has 100 degrees between the freezing point (0°C) and boiling point (100°C) of water. The term ‘centigrade’ means ‘hundred degrees’. This scale was originally proposed by Anders Celsius.
Q12. The freezing point of water on the Celsius scale is:
On the Celsius scale, water freezes at 0°C under standard atmospheric pressure. This makes it easy to remember that 0°C is the freezing point of water. The Celsius scale is based on the properties of water.
Q13. The boiling point of water on the Celsius scale is:
On the Celsius scale, water boils at 100°C under standard atmospheric pressure. This is exactly 100 degrees above the freezing point. The Celsius scale is also called the centigrade scale because of this 100-degree interval.
Q14. The freezing point of water on the Fahrenheit scale is:
On the Fahrenheit scale, water freezes at 32°F under standard atmospheric pressure. Gabriel Fahrenheit chose this number for practical reasons. The Fahrenheit scale is still used in some countries.
Q15. The boiling point of water on the Fahrenheit scale is:
On the Fahrenheit scale, water boils at 212°F under standard atmospheric pressure. This is much higher than the boiling point on the Celsius scale (100°C). The difference between the freezing and boiling points on the Fahrenheit scale is 180 degrees.
Q16. The freezing point of water on the Kelvin scale is:
The freezing point of water (0°C) is equal to 273.15 K on the Kelvin scale. This is a fundamental reference point in thermodynamics. The Kelvin scale is used in most scientific applications.
Q17. The boiling point of water on the Kelvin scale is:
The boiling point of water (100°C) is equal to 373.15 K on the Kelvin scale. This is another important reference point in thermodynamics. The Kelvin scale is often used in calculations involving gas laws and heat.
Q18. The conversion from Celsius to Kelvin is given by the formula:
To convert a temperature from Celsius to Kelvin, you add 273 to the Celsius temperature. This is because 0°C is equal to 273.15 K. This conversion is widely used in scientific experiments and calculations.
Q19. The conversion from Kelvin to Celsius is given by the formula:
To convert a temperature from Kelvin to Celsius, you subtract 273 from the Kelvin temperature. This is because 0 K is absolute zero, which is equal to -273.15°C. This conversion is often used in scientific contexts.
Q20. The conversion from Celsius to Fahrenheit is given by the formula:
To convert a temperature from Celsius to Fahrenheit, you multiply the Celsius temperature by 9/5 and then add 32. This is because the Fahrenheit scale has a different zero point and a different degree size compared to the Celsius scale. This formula is widely used for temperature conversion.
Q21. The conversion from Fahrenheit to Celsius is given by the formula:
To convert a temperature from Fahrenheit to Celsius, you subtract 32 from the Fahrenheit temperature and then multiply by 5/9. This formula reverses the Celsius to Fahrenheit conversion. It is commonly used in weather and science.
Q22. If a person has a temperature of 37°C, what is it in Kelvin?
To convert 37°C to Kelvin, you add 273: 37 + 273 = 310 K. This is the normal body temperature in Kelvin. The Kelvin scale is often used in medical research and scientific studies.
Q23. If a person has a temperature of 310 K, what is it in Celsius?
To convert 310 K to Celsius, you subtract 273: 310 – 273 = 37°C. This is the normal body temperature in Celsius. The Kelvin scale is often used in scientific experiments and calculations.
Q24. If a person has a temperature of 98.6°F, what is it in Celsius?
To convert 98.6°F to Celsius, you subtract 32 and multiply by 5/9: (98.6 – 32) × 5/9 = 66.6 × 5/9 = 37°C. This is the normal body temperature in Celsius. The Fahrenheit scale is used mainly in the United States.
Q25. If a person has a temperature of 37°C, what is it in Fahrenheit?
To convert 37°C to Fahrenheit, you multiply by 9/5 and add 32: (37 × 9/5) + 32 = 66.6 + 32 = 98.6°F. This is the normal body temperature in Fahrenheit. The Fahrenheit scale is used in the United States and a few other countries.
Q26. A healthy person’s body temperature is usually above:
A healthy person’s body temperature is usually above 35°C. Temperatures below 35°C indicate hypothermia, which is a medical emergency. The normal body temperature is around 37°C.
Q27. A person has a fever if their body temperature is above:
A person is considered to have a fever if their body temperature rises above the normal 37°C. A temperature above 38°C is often considered a significant fever. Fever is a sign that the body is fighting an infection.
Q28. A person has hypothermia if their body temperature falls below:
Hypothermia is a condition where the body temperature drops below 35°C. This can occur due to exposure to cold weather or cold water. It is a medical emergency and requires immediate attention.
Q29. A clinical thermometer has a range from:
A clinical thermometer has a narrow range of 35°C to 42°C. This is because the human body temperature normally lies within this range. This range allows for accurate measurement of body temperature.
Q30. A laboratory thermometer has a range from:
A laboratory thermometer has a wide range of -10°C to 110°C. This allows it to measure very cold and very hot substances. It is used in experiments to measure the temperature of water, chemicals and other materials.
Q31. The normal body temperature of a dog is about:
The normal body temperature of a dog is about 38°C to 39°C, which is slightly higher than that of humans. This temperature range is typical for many mammals. It can be measured using a rectal thermometer.
Q32. The normal body temperature of a cat is about:
The normal body temperature of a cat is about 38°C to 39°C, similar to that of dogs. This temperature range is typical for many domestic animals. It can be measured using a rectal thermometer.
Q33. The normal body temperature of a bird is about:
Birds generally have a higher body temperature than mammals, ranging from 40°C to 42°C. This higher temperature helps them maintain the energy needed for flight. Body temperature in birds is measured using a thermometer placed in the cloaca.
Q34. The normal body temperature of a cow is about:
The normal body temperature of a cow is about 38°C to 39°C. This temperature range is typical for large mammals. It is measured using a rectal thermometer by veterinarians.
Q35. The normal body temperature of a horse is about:
The normal body temperature of a horse is about 38°C to 39°C. This temperature range is similar to that of cows and other large mammals. It is measured using a rectal thermometer.
Q36. The air temperature is measured using a:
Weather thermometers are used to measure the temperature of the air. They are placed outdoors in a shaded area to give an accurate reading. These thermometers can be liquid-in-glass or digital.
Q37. The temperature of a room is measured using a:
A room thermometer is used to measure the temperature inside a room. It can be a liquid-in-glass thermometer or a digital device. Room temperature is important for comfort and for storing certain items.
Q38. The maximum temperature recorded on a thermometer is called the:
The maximum temperature recorded on a thermometer is the highest temperature reached during a specific period. This is often recorded in weather stations. The maximum temperature is used to determine weather patterns and climate.
Q39. The minimum temperature recorded on a thermometer is called the:
The minimum temperature recorded on a thermometer is the lowest temperature reached during a specific period. This is also recorded in weather stations. The minimum temperature is important for agriculture and weather forecasting.
Q40. The thermometer used to measure the highest and lowest temperature in a day is called a:
A maximum-minimum thermometer is used to record the highest and lowest temperatures over a period of time, usually a day. It has two separate indicators that capture the maximum and minimum temperatures. This is commonly used in weather stations and greenhouses.
Q41. Absolute zero on the Celsius scale is:
Absolute zero is the lowest possible temperature, at which all molecular motion stops. On the Celsius scale, absolute zero is approximately -273.15°C. This temperature has never been reached in practice.
Q42. Absolute zero on the Fahrenheit scale is:
Absolute zero on the Fahrenheit scale is approximately -459.67°F. This is the equivalent of -273.15°C and 0 K. This temperature is a theoretical limit that cannot be reached.
Q43. Absolute zero on the Kelvin scale is:
Absolute zero is 0 K on the Kelvin scale. It is the point at which all molecular motion theoretically stops. This is the lowest possible temperature in the universe.
Q44. The normal room temperature is about:
The normal room temperature is about 20°C to 25°C. This is considered comfortable for human beings. Room temperature can vary depending on the season and location.
Q45. The normal room temperature in Fahrenheit is about:
The normal room temperature in Fahrenheit is about 68°F to 77°F. This is the equivalent of 20°C to 25°C. Room temperature is important for comfort and for storing certain items.
Q46. A digital thermometer is preferred over a mercury thermometer because:
Digital thermometers are preferred over mercury thermometers because they are faster, safer and easier to read. They do not contain toxic mercury, which is a concern with glass thermometers. Digital thermometers are now widely used in homes and hospitals.
Q47. The use of mercury in thermometers is being phased out because:
Mercury is toxic and can cause serious health problems if inhaled or ingested. It is also harmful to the environment. This is why the use of mercury in thermometers is being phased out in many countries.
Q48. The temperature of a person with a fever is usually measured:
The temperature of a person with a fever can be measured under the tongue (oral), in the armpit (axillary) or in the ear (tympanic). Oral and axillary measurements are common at home. Ear thermometers are also becoming popular for quick and easy readings.
Q49. The temperature of a person can also be measured using an:
The temperature of a person can be measured using an infrared thermometer, a digital thermometer or a mercury thermometer. Infrared thermometers measure temperature without contact by detecting infrared radiation. Digital and mercury thermometers require contact with the body.
Q50. The formula to convert Celsius to Kelvin is:
The formula to convert Celsius to Kelvin is K = °C + 273. This is because 0°C is equal to 273.15 K. This conversion is used in many scientific calculations, including gas laws and thermodynamics.
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Q51. The formula to convert Kelvin to Celsius is:
The formula to convert Kelvin to Celsius is °C = K – 273. This is because 0 K is absolute zero, which is equal to -273.15°C. This conversion is often used in scientific experiments.
Q52. A clinical thermometer is washed with an antiseptic solution before use to:
A clinical thermometer is washed with an antiseptic solution before use to kill germs and prevent the spread of infection. This is important when the thermometer is used by different people. It is a standard hygiene practice in hospitals and clinics.
Q53. The kink in a clinical thermometer is also called a:
The kink in a clinical thermometer is also called a constriction. It is a narrow part of the tube near the bulb that prevents the mercury from flowing back quickly. This allows the user to read the temperature after removing the thermometer from the body.
Q54. The liquid in a thermometer expands when heated because:
The liquid in a thermometer expands when heated because the particles gain energy and move faster, causing them to spread apart. This expansion pushes the liquid up the tube, indicating a higher temperature. When cooled, the particles lose energy and come closer together.
Q55. The liquid in a thermometer contracts when cooled because:
The liquid in a thermometer contracts when cooled because the particles lose energy and slow down, causing them to come closer together. This contraction pulls the liquid down the tube, indicating a lower temperature.
Q56. The Celsius scale was originally called the:
The Celsius scale was originally called the centigrade scale because it has 100 degrees between the freezing and boiling points of water. The term ‘centigrade’ means ‘hundred degrees’. This name is still used in some contexts.
Q57. The Kelvin scale is also called the:
The Kelvin scale is also called the absolute temperature scale because it starts at absolute zero, the lowest possible temperature. It is used in scientific contexts and is the SI base unit of temperature. The Kelvin scale does not use the degree symbol.
Q58. The Fahrenheit scale was developed by Gabriel Fahrenheit in:
Gabriel Fahrenheit developed the mercury thermometer and the Fahrenheit scale in 1714. This was a significant advancement in temperature measurement. The Fahrenheit scale is still used in the United States.
Q59. The Kelvin scale was developed by Lord Kelvin in:
The Kelvin scale was developed by Lord Kelvin in 1848. He proposed an absolute temperature scale where 0 K is absolute zero. The Kelvin scale is now the SI base unit of temperature.
Q60. The Celsius scale was developed by Anders Celsius in:
The Celsius scale was developed by Anders Celsius in 1742. He originally defined the scale with 0°C as the boiling point and 100°C as the freezing point. This was later reversed to its current form. The Celsius scale is now used worldwide.