WAVES. Take 2 minutes… List everything you currently know about waves. On your mark, get set, GO!!!

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Presentation transcript:

WAVES

Take 2 minutes… List everything you currently know about waves. On your mark, get set, GO!!!

WAVES: have energy and transfer energy when they interact with matter

“Medium” of a wave… what the wave travels through -SOLID -LIQUID -GAS –Examples: Seismic waves (earthquakes) travel through the ground Ocean waves travel through water

Crest =above the line Trough =below the line

Amplitude =height –Larger amplitude=more energy

Wavelength = distance between any two corresponding locations. 1. crest to next crest 2. trough to next trough 3. from the start of a wave cycle to the next starting point

Wavelength

Frequency: higher frequency=more energy

High or Low Frequency?

Let’s make waves…

Let’s practice…

Longitudinal vs. Transverse Waves

Longitudinal Waves

Transverse Waves Examples: light waves and water waves

Transverse Waves

Check for Understanding… 1. A transverse wave is transporting energy from east to west. The particles of the medium will move_____. a. east to west only b. both eastward and westward c. north to south only d. both northward and southward

Longitudinal Waves Examples: sound waves

Longitudinal Waves: Compression : place where particles are closest together Rarefaction : place where particles are furthest apart

Longitudinal Waves: Wavelength

Check for Understanding… 2.A wave is transporting energy from left to right. The particles of the medium are moving back and forth in a leftward and rightward direction. This type of wave is known as a ____. a. mechanical b. electromagnetic c. transverse d. longitudinal

Water: Transverse or Longitudinal?

Let’s practice…