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Bell Ringer 3-17-14 Write the question and your answer..

Bell Ringer 3-17-14 Write the question and your answer. Waves transfer ____, have describable ______, and interact in predictable ____. Hint: Ways, Energy, Properties. Waves transfer energy, have describable properties, and interact in predictable ways. Bell Ringer 3/17/17 The Big Idea.

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Bell Ringer 3-17-14 Write the question and your answer..

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  1. Bell Ringer 3-17-14Write the question and your answer.. Waves transfer ____, have describable ______, and interact in predictable ____ Hint: Ways, Energy, Properties

  2. Waves transfer energy, have describable properties, and interact in predictable ways. Bell Ringer 3/17/17The Big Idea Hint: Ways, Energy, Properties

  3. MYP: Can you hear (OR SEE) me NOW? AOI: Health and Social Education Learner Profile: Inquirer Essential Question: What are waves? Standard: S8P4.Students will EXPLORE the wave nature of sound and electromagnetic radiation. • A. Identify the characteristics of electromagnetic waves and mechanical waves. • Learning Target: Today I am learning about the properties of waves, this is important because it will help meunderstand my world better. Homework: Study for upcoming quiz on Friday.

  4. Opening- Think – Pair - Share • Watch the Demo, then work with your elbow partner to come up with 5 example of waves in your daily experience.

  5. Work Session- Flip Foldable 1 1- Place 3 pieces of paper with long edges aligned and the short edges staggered. 2- Fold Edges over to reveal staggered spacing- staple along the top 2

  6. Label the Flaps WAVE Mechanical & Electromagnetic Waves Transverse Waves PARTS OF A TRANSVERSE WAVE Longitudinal Waves PARTS OF A LONGITUNINAL WAVE

  7. Wave Basics • Definition: A disturbance that transfers ENERGYthrough matter OR empty space • What causes waves: Waves are created when a source of energy causes a medium to vibrate. • A vibrationis a repeated back and forth or up and down motion. • Waves are classified by what they move through or on how energy moves through them.

  8. Classification based on what they move Through • Mechanical waves: waves that can ONLY move through a medium (through matter).. Mechanical waves require the particles of the medium to vibrate in order for energy to be transferred. They cannot travel through empty space!! • Electromagnetic waves:are waves that can travel through matter or empty space where matter is not present.

  9. NATURE OF WAVES- Do Not Write • We now know that waves can be mechanical or electromagnetic, but there are also 3 types of waves: • Three types of waves: *TRANSVERSE *LONGITUDINAL SURFACE/WATER

  10. Classification based on how energy moves through them. • Transverse waves- waves in which particles of the matter vibrate by moving in an up and down motion (move perpendicularly to the direction the wave is moving). • Transverse waves are made up of CRESTS and TROUGHS • ex: electromagnetic waves (light, x-ray)

  11. PARTS of a TRANSVERSE WAVE!- Top

  12. Parts of a Transverse Wave - Bottom • Crest- The highest point of a wave (top) • Trough- The lowest point of the wave (bottom)

  13. Time to Practice • Use your rope to demonstrate a transverse wave: • Work with a partner • One of you move your end of the ROPE back and forth (left and right, like a snake crawling), perpendicular to its stretched length. • The other student must hold his or her end of the ROPE still. • A series of transverse waves will be generated and will travel through a medium (ROPE)

  14. LONGITUDINAL WAVES • Particles vibrate parallel to (in the same direction of) wave travel • Ex- Sound

  15. Parts of a longitudinal wave - top http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

  16. Parts of a longitudinal wave- Bottom • When the particles move close together it is called COMPRESSION and when they move farther apart RAREFRACTION . • Sound waves

  17. Closing- BBC Bitesize

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