10 Questions
What happens to the particles in the bigger balloon in the model?
They move faster due to a gain in energy
What causes evaporation to occur?
Molecules gaining enough energy to enter the gaseous state
What is the role of condensation in the phase changes from gas to liquid?
Molecules slow down and become a liquid
What effect does temperature have on evaporation?
Higher temperature speeds up evaporation
What is the boiling point of a substance defined as?
The temperature at which molecules can change to the gaseous state throughout the liquid
What happens to the speed of particles when a substance is heated?
The speed of particles increases
How does the volume of a substance change when it is cooled?
The volume decreases
Which statement best describes the movement of gaseous particles?
Gaseous particles travel in straight lines until they collide
What is the relationship between temperature and the speed of particles?
Temperature is a measure of the average speed of particles
What happens to the atoms/molecules of a substance when it is heated?
The atoms/molecules spread further apart
Test your knowledge on how heat affects the speed of particles, temperature, and volume in substances. Learn about energy transfer leading to changes in temperature and the relationship between particle speed and temperature.
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