Measurement of Time and Temperature

The video tutorial explains how time and temperature are measured. It covers the definition of time as intervals between events and describes various methods and devices used to measure time, such as sundials, pendulum clocks, quartz watches, and atomic clocks. The tutorial also discusses the concept of temperature, different temperature scales like Fahrenheit, Celsius, and Kelvin, and the use of thermometers for measurement.

What is the primary method our ancestors used to measure time?

• Atomic clocks

• Sundials

• Digital clocks

• Quartz watches

Which device uses the oscillation of a pendulum to measure time?

• Sundial

• Pendulum clock

• Atomic clock

• Quartz watch

What is the SI unit of time?

• Second

• Hour

• Minute

• Day

Which type of clock is used to maintain accurate Standard Time for a nation?

• Digital clock

• Atomic clock

• Quartz clock

• Pendulum clock

Who introduced the Fahrenheit scale of temperature?

• Daniel Gabriel Fahrenheit

• Christian Huygens

• Lord Kelvin

• Anders Celsius

At what temperature do the Fahrenheit and Celsius scales converge?

• 32 degrees

• 0 degrees

• -40 degrees

• 100 degrees

What is the temperature at which atoms stand still, known as absolute zero?

• 0 Kelvin

• 100 Kelvin

• -273.15 Celsius

• Both A and B

How do you convert degrees Celsius to Kelvin?

• Multiply by 2

• Add 100

• Subtract 273

• Add 273

What type of thermometer is used to measure body temperature?

• Digital thermometer

• Mercury thermometer

• Clinical thermometer

• Laboratory thermometer

What temperature indicates fever in a clinical thermometer?

• Above 37 degrees Celsius

• Below 37 degrees Celsius

• Above 40 degrees Celsius

• Exactly 37 degrees Celsius