Podcast
Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App
Questions and Answers
Which of the following is a correct example of heat being produced due to the conversion of mechanical energy?
Which of the following is a correct example of heat being produced due to the conversion of mechanical energy?
- Burning petrol/diesel in engines
- Stirring water vigorously in a mixer
- Nail hammered into a log of wood (correct)
- Rubbing hands together
What is the primary cause of heat production when water is stirred vigorously in a mixer?
What is the primary cause of heat production when water is stirred vigorously in a mixer?
- Conversion of nuclear energy
- Conversion of mechanical energy (correct)
- Conversion of chemical energy
- Conversion of electrical energy
How is the sensation of hotness and coldness related to heat?
How is the sensation of hotness and coldness related to heat?
- Heat is a form of energy which causes the sensation of hotness and coldness. (correct)
- Heat is the only form of energy responsible for hotness and coldness sensations.
- Heat causes hotness while coldness is caused by other forms of energy.
- Hotness and coldness sensations are not related to heat energy.
What happens to the heat produced by burning petrol/diesel in engines?
What happens to the heat produced by burning petrol/diesel in engines?
Signup and view all the answers
Flashcards are hidden until you start studying
