Lecture Notes Flashcards: States of Matter, Substances, and Learning Strategies

What is the fluency fallacy as described in the lecture?

The idea that if a teacher explains something well in class, it will be easy to do on your own, which becomes clear only when you try it yourself.

What study strategy did the instructor advocate to improve long-term retention?

Space repetition—practice in several shorter sessions spread out over days or a week rather than cramming in one long session.

Name the three basic states of matter discussed.

Solids, liquids, and gases.

What determines whether a substance is a solid, liquid, or gas?

The relative magnitude of kinetic energy (temperature) compared to intermolecular forces; KE << IMF yields a solid, KE ≈ IMF yields a liquid, KE >> IMF yields a gas.

Describe the shape and volume characteristics of solids, liquids, and gases.

Solids have definite shape and volume; liquids have definite volume but take the shape of their container; gases take both shape and volume of their container.

How do