Grade 11 Physics: Particle Model Worksheet
Explore the fundamental concepts of the particle model, including states of matter, particle arrangement, and energy transfer at a Grade 11 physics level.
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Grade 11 Physics: Particle Model
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Read each question carefully and answer to the best of your ability. Show all your work for calculation-based questions.
1. Which of the following best describes the arrangement of particles in a gas?
Closely packed in a regular arrangement
Closely packed but randomly arranged
Far apart and randomly arranged
Arranged in layers that can slide over each other
2. When a substance undergoes a phase change from liquid to gas, what happens to the kinetic energy of its particles?
It decreases
It increases
It remains constant
It is converted to potential energy only
3. The temperature of a substance is a measure of the average energy of its particles.
4. In the particle model, particles in a solid are held in fixed positions by strong forces.
5. The process by which a solid turns directly into a gas without passing through the liquid phase is called .
6. Particles in a liquid have more kinetic energy than particles in a gas at the same temperature.
True
False
7. The particle model explains why gases are easily compressible.
True
False
8. Using the particle model, explain why a solid has a definite shape and volume.
9. Describe the motion of particles in a liquid and how it differs from the motion of particles in a solid.
10. Observe the image below which illustrates the particle arrangement in different states of matter. Label each diagram as 'Solid', 'Liquid', or 'Gas'.
A:
B:
C: