Thermal Physics - Basic Definitions Chapter 1 Quiz

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Which unit is used to measure heat energy in the SI system?

Newton

Volt

Joule (correct)

Kilogram

Which device converts heat energy into electrical energy?

Thermocouple (correct)

Refrigerator

Thermos flask

Incandescent light bulb

What remains constant when mechanical energy (work) is converted into heat?

Heat produced

Temperature difference

Internal energy

Mechanical equivalent of heat (correct)

What is the value of the mechanical equivalent of heat?

$4.2$ J cal Signup and view all the answers

According to kinetic theory, what does temperature represent at the microscopic level?

The average translational kinetic energy of molecules Signup and view all the answers

What is the theoretical lower limit of temperature according to the passage?

Absolute zero (0 K) Signup and view all the answers

What is the highest temperature achieved in a laboratory, as mentioned in the passage?

10^8 K Signup and view all the answers

Which branch of physics deals with the production and measurement of very low temperatures?

Cryogenics Signup and view all the answers

What is the relationship between temperature and kinetic energy, as expressed in the passage?

E = 2RT Signup and view all the answers

What happens when heat is supplied to a body at its melting or boiling point?

The temperature of the body remains constant Signup and view all the answers

How does work done on a system become a source of heat energy?

By compressing a gas or shaking a liquid Signup and view all the answers

Which statement about heat is true?

Heat is a path-dependent quantity Signup and view all the answers

How is temperature defined?

The degree of hotness or coldness of a body Signup and view all the answers

What happens when heat is given to a body without changing its state?

The temperature of the body rises Signup and view all the answers

Which of the following statements about temperature is true?

Temperature is one of the seven fundamental quantities Signup and view all the answers

Thermal Physics - Basic Definitions Chapter 1 Quiz

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