Wave Energy. Waves have different energy Waves with lots of energy look and feel different than...
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Transcript of Wave Energy. Waves have different energy Waves with lots of energy look and feel different than...
Wave Energy
Waves have different energy
• Waves with lots of energy look and feel different than waves that have little energy.
• Ex) breeze making waves in a pool (little energy)
• Someone doing a cannonball and making waves in the pool (lots of energy)
• Slinky example!
Amplitude
• Related to the waves height
• The more energy = the higher the amplitude
• Think about fluffing a sheet
• Jump rope example
Wavelength
• The distance between 2 crests
• More energy = shorter wavelength (because the waves are coming along faster and closer together)
• Slinky/ jump rope example
Frequency
• The number of waves produced in a given time
• More energy = higher frequency (or more waves)
Recap
• MORE ENERGY = – Shorter wavelength– Higher amplitude– Higher frequency
Frequency and Wavelength• Are OPPOSITES!
• High frequency = shorter wavelengths
• The more energy the waves have, the faster they come and the faster they come, they closer they are together so they have smaller wavelengths
• High frequency = low or short wavelength• Low frequency = high or long wavelength
Mechanical wave
• Wave that travel through a medium
• Ex) ocean waves travel through water• Earthquake waves travel through the ground• Sound waves travel through the air
Electromagnetic Wave
• Do not need a medium
• Ex)light waves, microwaves, x-rays, tv and radio waves
Venn Diagram
• Compare and contrast electromagnetic and mechanical waves in a venn diagram