Internal energy (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is internal energy?
What is internal energy?
Sum of kinetic & potential energy of all
Which motion contributes to the kinetic energy component of internal energy?
Which motion contributes to the kinetic energy component of internal energy?
Translational, rotational & vibrational
What are the two distinct ways to increase internal energy of a system?
What are the two distinct ways to increase internal energy of a system?
Heating and doing work on the system
What is heating?
What is heating?
Energy transfer due to temp difference
When you hammer a nail repeatedly, what happens to its internal energy?
When you hammer a nail repeatedly, what happens to its internal energy?
Increases due to work done on it
What happens when CO gas escapes from high pressure and expands rapidly?
What happens when CO gas escapes from high pressure and expands rapidly?
Internal energy decreases, may form ice
What did Joule's paddle wheel experiment demonstrate?
What did Joule's paddle wheel experiment demonstrate?
Heat & work are equivalent energy forms
What does the first law of thermodynamics state for increasing internal energy?
What does the first law of thermodynamics state for increasing internal energy?
= energy by heating + work on it
What does a temperature rise indicate about particles in a substance?
What does a temperature rise indicate about particles in a substance?
Kinetic energy increased, moving faster
During a change of state, which component of internal energy increases?
During a change of state, which component of internal energy increases?
Potential energy component