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### How to study your flashcards.

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### 15 Cards in this Set

• Front
• Back
 Q What is a wave? A A disturbance (vibration) that transfers energy from place to place. The vibration IS the wave. Q What is energy? A the ability to do work Q What is a medium? A the material through which a wave travels Q What is a mechanical wave? A A wave that requires a medium through which to travel Q What causes waves? A Waves are created when a source of energy causes a medium to vibrate. Q What is a vibration? A a repeated back-and-forth or up-and-down motion. Q What are the 3 types of waves? A 1. transverse waves 2. longitudinal waves 3. surface waves Q What are transverse waves? A Waves that move the medium at right angles to the direction the waves are traveling. Q What are longitudinal waves? A Waves that move the particles of the medium parallel to the direction the waves are traveling. Q Name 2 parts of a longitudinal wave. A compressions and rarefactions Q In a longitudinal wave, what are the compressions? A The parts where the medium particles are CLOSE together. (ex. the coils are close together) Q In a longitudinal wave, what are the rarefactions? A The parts where the medium particles are spread out. (ex. the coils are spread out) Q What are surface waves? A a combination of transverse and longitudinal waves. (ex. ocean waves) Q What are the highest parts of a transverse wave called? A crests Q What are the lowest parts of a transverse wave called? A troughs (trawfs)