1.When waves travel through a medium, WHAT do they transfer between the two points? ENERGY.

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Presentation transcript:

1.When waves travel through a medium, WHAT do they transfer between the two points? ENERGY

2.Label the following on the diagram: Wavelength Trough Crest Amplitude cycle

AMPLITUDE FREQUENCY 3.What is the direct measure of the waves energy called? 4.The number of waves that pass a certain point at a given time is the ______________ of the wave.

What is the highest part of the wave called? CREST

Transverse Draw a longitudinal wave. Draw a transverse wave. Which one moves the particles of the medium perpendicular to the direction of the Energy transport? Which one moves the particles of the medium parallel to the direction of the Energy transport? Transverse LONGITUDINAL

In a longitudinal wave, the areas were the coils are farthest apart are called? RAREFACTIONS

DECREASES HERTZ As the wavelength of a wave gets longer, the frequency? The frequency of a wave is measured in units called?

Which wave below has high frequency but low amplitude? Which wave below has the highest frequency?

MECHANICAL WATER AND SOUND What type of wave requires a medium to pass through? MECHANICAL Which two are examples of mechanical waves requiring a medium to pass through? a. water b. radio c. light d. sound WATER AND SOUND

What type of waves do NOT require a medium to pass through, they may move through a vacuum such as space? Mechanical or electromagnetic? Give examples. ELECTROMAGNETIC: LIGHT RADIO MICROWAVE INFRARED X-RAY GAMMA

The speed of a wave is it’s wavelength multiplied by it’s ____________? Frequency amplitude vibration reflection FREQUENCY

1,493 m/s Carbon dioxide Sound waves travel slowest through? At what speed through water at 25 degrees Celsius? 1,493 m/s Compare the speed of SOUND through WATER and AIR? FASTER THRU WATER

SIESMIC WAVES Changes directions when passing thru a different medium: Choose from these words: resonance, reflection, refraction, seismic waves, constructive interference Changes directions when passing thru a different medium: REFRACTION A light ray hitting a surface and bouncing off. REFLECTION Waves produced by earthquakes: SIESMIC WAVES

RESONANCE CONSTRUCTIVE WAVE DIFFRACTION Choose from these words: resonance, reflection, refraction, seismic waves, constructive interference When vibrations match an object’s natural frequency and travel through it: RESONANCE Two waves combine and make a larger wave: CONSTRUCTIVE WAVE Bending of waves around a barrier: DIFFRACTION

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