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Review: States of Matter, Thermal Energy & Energy Transfer

Review: States of Matter, Thermal Energy & Energy Transfer. Matter. Matter – anything that has mass and takes up space Everything around us. Four States of Matter. Solids particles vibrate but can’t move around fixed shape fixed volume incompressible. Four States of Matter. Liquids

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Review: States of Matter, Thermal Energy & Energy Transfer

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  1. Review: States of Matter, Thermal Energy & Energy Transfer

  2. Matter • Matter – anything that has mass and takes up space • Everything around us

  3. Four States of Matter • Solids • particles vibrate but can’t move around • fixed shape • fixed volume • incompressible

  4. Four States of Matter • Liquids • particles can move around but are still close together • variable shape • fixed volume • virtually incompressible

  5. Four States of Matter • Gases • particles can separate and move throughout container • variable shape • variable volume • easily compressed • vapor = gaseous state of a substance that is a liquid or solid at room temperature

  6. Four States of Matter • Plasma • particles collide with enough energy to break into charged particles (+/-) • gas-like, variableshape & volume • stars, fluorescentlight bulbs, TV tubes

  7. Energy & Temperature • Energy is the ability to do work or produce heat. • Temperature is a measure of the random motions (kinetic energy) of the components of a substance Fast Slow Hot water Cold water

  8. Temperature & Heat • Heat transfer is a flow of energy between two objects due to a temperature difference between the objects. • Heat transfer is the way in which thermal energy is moved from a hot object to a colder object. Hot water Cold water (90. oC) (10. oC) Water Water (50. oC) (50. oC)

  9. Heat Transfer • Heat always flows from warmer to cooler objects. Cup gets cooler while hand gets warmer Ice gets warmer while hand gets cooler

  10. Types of Energy • Mechanical energy- due to a object’s motion • Electrical energy- caused by movements of electrons • Chemical energy- that is available for release from chemical reactions

  11. Quiz Time • What type of energy is shown below?

  12. Quiz Time • What type of energy is shown below?

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