Measurement Of Temperature

Question 1

What is temperature a measure of?

Answer 1

Temperature is a measure of the average kinetic energy of the particles in a substance.

Question 2

True or False: Temperature is an extensive property.

Answer 2

False: Temperature is an intensive property.

Question 3

What is the SI unit of temperature?

Answer 3

The SI unit of temperature is the Kelvin (K).

Question 4

Fill in the blank: The freezing point of water is _____ degrees Celsius.

Answer 4

0

Question 5

Which temperature scale uses absolute zero as its starting point?

Answer 5

The Kelvin scale.

Question 6

What does a thermocouple measure?

Answer 6

A thermocouple measures temperature by generating a voltage based on the temperature difference between two different metals.

Question 7

True or False: The Fahrenheit scale is primarily used in scientific contexts.

Answer 7

False: The Celsius and Kelvin scales are primarily used in scientific contexts.

Question 8

Convert 25 degrees Celsius to Kelvin.

Answer 8

298.15 K

Question 9

What is the boiling point of water in Fahrenheit?

Answer 9

212 degrees Fahrenheit.

Question 10

Name one common device used to measure temperature.

Answer 10

Thermometer.

Question 11

What is the relationship between Celsius and Fahrenheit?

Answer 11

The relationship is given by the formula F = (C × 9/5) + 32.

Question 12

True or False: Thermistors are temperature-sensitive resistors.

Answer 12

True.

Question 13

Fill in the blank: Absolute zero is _____ Kelvin.

Answer 13

0

Question 14

What is the main principle behind infrared thermometers?

Answer 14

Infrared thermometers measure the infrared radiation emitted by an object to determine its temperature.

Question 15

What is the Kelvin equivalent of -273.15 degrees Celsius?

Answer 15

0 K

Question 16

True or False: The Celsius scale is based on the properties of water.

Answer 16

True.

Question 17

What is the difference between a liquid-in-glass thermometer and a bimetallic thermometer?

Answer 17

A liquid-in-glass thermometer uses liquid expansion, while a bimetallic thermometer uses the expansion of two different metals.

Question 18

What does the term ‘thermometric substance’ refer to?

Answer 18

It refers to the substance used in thermometers to measure temperature, such as mercury or alcohol.

Question 19

What is the significance of the triple point of water in temperature measurement?

Answer 19

The triple point of water is used to define the Kelvin scale and is the point where water coexists in solid, liquid, and gas phases.

Question 20

Fill in the blank: The boiling point of water at sea level is _____ degrees Celsius.

Answer 20

100

Question 21

What type of thermometer uses a gas to measure temperature?

Answer 21

Gas thermometers.

Question 22

True or False: The Celsius scale is also known as the centigrade scale.

Answer 22

True.

Question 23

What is the primary advantage of using a digital thermometer?

Answer 23

Digital thermometers provide quick and accurate readings.

Question 24

What is the formula to convert Fahrenheit to Celsius?

Answer 24

C = (F - 32) × 5/9.

Question 25

What is a pyrometer used for?

Answer 25

A pyrometer is used to measure high temperatures, often in industrial applications.

Question 26

Fill in the blank: The temperature at which a substance changes from solid to liquid is called the _____ point.

Answer 26

melting