Understanding States of Matter and Energy: Kinetic Theory Overview
This resource covers Unit 2: Matter, focusing on Chapter 3, which explores the states of matter and kinetic theory. Key concepts include the definition of solids, liquids, gases, and plasma, emphasizing the motion of particles at different temperatures. Students are urged to maintain grades above 77 to avoid parent contact, with an opportunity for tutoring and retaking tests before next Thursday. The material also discusses energy types, including kinetic and thermal energy, and includes an exit slip for retention of information.
Understanding States of Matter and Energy: Kinetic Theory Overview
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Presentation Transcript
Bell Ringer • Check your file! • If your test grade is below a 77, you have until next Thursday to come in for tutoring and arrange a retake of the test. • Any student whose final grade falls below a 77 will have a parent contact. Be ready!
Unit 2: MatterChapter 3: States of MatterSection 1: Matter and Energy
Kinetic Theory • Kinetic Theory of Matter - Matter is made of atoms and molecules that are always in motion • Higher temperatures = faster motion of the particles • Larger particles move slower than smaller ones
States of Matter • Solids – have definite shape and volume • Ex) ice cube • Liquids – change shape, not volume • Ex) kool-aid • Gases – change both shape and volume • Ex) CO2
States of Matter • Fluids – nonsolid state of matter in which the atoms or molecules are free to move past each other, as in a gas or liquid • Gases and liquids • Plasma – state of matter that consists of free-moving ions and electrons
Energy • Energy – the capacity to do work • Ability to change or move matter • All particles of matter have kinetic energy (because they are always in motion!!!)
Energy • Temperature – measure of the average kinetic energy of the particles in an object • Basically, measures how fast particles are moving • Thermal Energy – the total kinetic energy of a substance’s atoms
Exit Slip • What kind of energy do all particles of matter have?
