Podcast
Questions and Answers
Which unit is used to measure heat energy in the SI system?
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?
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?
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?
What is the value of the mechanical equivalent of heat?
According to kinetic theory, what does temperature represent at the microscopic level?
According to kinetic theory, what does temperature represent at the microscopic level?
What is the theoretical lower limit of temperature according to the passage?
What is the theoretical lower limit of temperature according to the passage?
What is the highest temperature achieved in a laboratory, as mentioned in the passage?
What is the highest temperature achieved in a laboratory, as mentioned in the passage?
Which branch of physics deals with the production and measurement of very low temperatures?
Which branch of physics deals with the production and measurement of very low temperatures?
What is the relationship between temperature and kinetic energy, as expressed in the passage?
What is the relationship between temperature and kinetic energy, as expressed in the passage?
What happens when heat is supplied to a body at its melting or boiling point?
What happens when heat is supplied to a body at its melting or boiling point?
How does work done on a system become a source of heat energy?
How does work done on a system become a source of heat energy?
Which statement about heat is true?
Which statement about heat is true?
How is temperature defined?
How is temperature defined?
What happens when heat is given to a body without changing its state?
What happens when heat is given to a body without changing its state?
Which of the following statements about temperature is true?
Which of the following statements about temperature is true?
