subject

Change of State

Physics ⇒ Heat and Thermodynamics

Change of State starts at 8 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Change of State. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 8
A block of ice is left in a warm room. Describe the changes of state it undergoes and the energy changes involved.
A student heats a beaker of ice at 0°C. What will happen to the temperature of the ice as it melts?
Describe what happens to the kinetic energy of particles during condensation.
Describe what happens to the temperature of a substance during a change of state, such as melting or boiling.
Explain what happens to the particles of a substance when it melts.
Explain why ice floats on water even though both are made of H2O.
Explain why sweating helps cool your body.
Explain why the temperature of boiling water does not rise even if it is heated further.
Name the process by which frost forms on a cold surface from water vapor in the air.
What is the main difference between boiling and evaporation?
What is the process called when a solid changes directly into a gas without passing through the liquid state?
When a substance changes from a solid to a liquid, what happens to the arrangement of its particles?