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Tutor HuntTest QuestionsPhysics QuestionsYear 10 Physics Questions

 

Changes Of State (GCSE Physics)

The following is a GCSE Physics test covering 'Changes Of State' from the broader topic Particle Model Of Matter. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Which statement best explains why evaporation cools a liquid?
Which expression gives the energy required to change mass m of a substance at its boiling point into vapour (latent heat of vaporisation L_v)?
What happens to the density of a substance when it changes from liquid to gas at constant temperature?
How does boiling differ from evaporation?
Which diagram (words) correctly compares particle motion before and after freezing of a liquid?
Why does steam condense to water when it touches a cool surface?
Which process requires energy to be absorbed (endothermic) for a substance to change state?
Why does a boiling liquid produce bubbles from its interior rather than only at the surface (evaporation)?
Why do different substances have different latent heats of fusion?
How does the particle model explain why gases are much more compressible than solids?
At the melting point of a pure substance what happens while the substance is changing from solid to liquid?