Do Now: My Planet Diary. Goosebumps Vocabulary: Wave:Energy:Medium: Mechanical Wave: Transverse Wave Longitudinal Wave.

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Presentation transcript:

Do Now: My Planet Diary

Goosebumps

Vocabulary: Wave:Energy:Medium: Mechanical Wave: Transverse Wave Longitudinal Wave

Vocabulary Wave: A disturbance involving the transfer of energy form place to place. Energy: The Ability to do work Medium: The material through a wave travels Mechanical Wave: waves that require a medium to travel. Transverse wave: vibrates the medium at right angles Longitudinal wave: vibrates the medium in the same direction in which the waves travel (parallel)

Discussion All waves transfer energy. A wave starts when energy is used to cause a disturbance in matter What happens if you drop a pebble into a calm pond? What is the medium that the wave travels through?

Teacher Demo We are going to use a string to demonstrate a wave: What is the wave medium? How does this mechanical wave move its medium?

Vocabulary: Amplitude:WavelengthFrequency

Vocabulary Amplitude: The maximum distance the medium vibrates from the rest position. Wavelength: The distance between two corresponding parts of a wave. Frequency: The number of waves that pass a given point in a certain amount of time.

Teacher Demo Speed of wave We are going to use a slinky to help with this as visual Did changing the frequency affect the speed? Did changing the amplitude affect the speed? Did changing the tension affect the speed?

You Do the Math! Follow along to the reading on p.14 tTeacherHomepage.do?newServiceId=6000&newPag eId= tTeacherHomepage.do?newServiceId=6000&newPag eId=10100 As a group complete the math part under Do the Math