Middle School Physical Science Flashcards: Particle Motion And Heat

Study Particle Motion And Heat in Middle School Physical Science with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What particle-level change best explains expansion when a substance is heated?

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ANSWER

Particles move faster and spread farther apart on average. Faster motion increases average particle separation, causing expansion.

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Middle School Physical Science: Matter and Its Interactions

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What this deck covers

This deck focuses on Particle Motion And Heat, giving you a quick way to review the definitions, rules, and examples that matter most for Middle School Physical Science.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set
A beaker of water is heated on a hot plate from 25°C to 100°C. In a particle model, the liquid particles start close together and sliding. After enough heating, some particles escape and become water vapor (gas) above the liquid. Which statement best describes how adding thermal energy changes the particles during this heating?
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