Pressure's Effect on Particle Motion
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Objective
I can construct a model to demonstrate how altering pressure in a system affects particle motion and arrangement.
Part 1 of 4
Warm-up video
FuseSchool - Global Education · 3:05
We don't generate video — this one is by FuseSchool - Global Education on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
Gases exert pressure on any surface they are in contact with; the more particles that hit the walls of a container, the higher the pressure.
- 2
The equation for pressure is force per unit area.
- 3
Heating a gas causes the particles to gain more energy and move around more quickly, which increases the pressure; cooling a gas causes the particles to have less energy and decreases the pressure.
Part 3 of 4
Practice
11 questions
Explain, using the concept of particle motion, why shaking a carbonated beverage increases the pressure inside the container.
How does increasing the temperature of a gas in a closed container affect the speed of the gas particles, and what is the consequence of this change in speed on the pressure exerted by the gas?
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe a model using a sealed container with gas particles to demonstrate what happens to the motion and arrangement of the gas particles when the volume of the container is decreased, assuming the temperature remains constant.”
Sample answer included in the free materials
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Teacher Guide
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