Conservation of Energy (HSC SSCE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What defines an isolated system?
What defines an isolated system?
Neither energy nor matter can cross boundary
What can cross the boundary of a closed system?
What can cross the boundary of a closed system?
Energy only
A torch converts chemical energy to electrical then to light energy. This is an example of what?
A torch converts chemical energy to electrical then to light energy. This is an example of what?
Energy transformation
What does the first law of thermodynamics state about energy in an isolated system?
What does the first law of thermodynamics state about energy in an isolated system?
Energy cannot be created or destroyed
Which state change requires energy input?
Which state change requires energy input?
Vaporization
What is the key difference between evaporation and vaporization?
What is the key difference between evaporation and vaporization?
Evaporation occurs at surface; vaporization forms bubbles
What is the specific latent heat of fusion of water?
What is the specific latent heat of fusion of water?
Why is latent heat of vaporization greater than latent heat of fusion?
Why is latent heat of vaporization greater than latent heat of fusion?
Complete particle separation needs more energy
Why are steam burns more severe than burns from liquid water at the same temperature?
Why are steam burns more severe than burns from liquid water at the same temperature?
Steam releases latent heat when condensing