- Explain that waves transfer energy, not matter.
- Distinguish between mechanical and electromagnetic waves.
- Summarize the major properties and behavior of waves, including (but not limited to) wavelength, frequency, amplitude, speed, refraction, reflection and diffraction.
Course Digital Resources:
amplitude: How far the medium (crests and troughs, or compression and rarefaction) moves from rest position (the place the medium is when not moving).
compression: When the particles of a longitudinal wave are close together.
compressional (longitudinal) wave: A wave in which the medium moves back and forth in the same direction as the wave.
crest: The highest point on a transverse wave.
diffraction: The bending of waves around an object.
electromagnetic wave: A wave that does not require a medium to travel, for example, it can travel through a vacuum. Also called an EM wave.
energy: The capacity to do work.
frequency: How many waves go past a point in one second. Measured in hertz (Hz).
mechanical wave: A wave that requires a medium to travel.
rarefaction : When the particles of a longitudinal wave are far apart.
reflection: When a wave bounces off a surface.
refraction: When a wave bends.
transverse wave: A wave in which the medium moves at right angles to the direction of the wave.
trough: The lowest point on a transverse wave.
wave: A disturbance that carries energy from one place to another.
wavelength: Distance between one point on a wave and the exact same place on the next wave.
Good Morning All! Class is canceled today and Wednesday. Your unit 8 should be done. Thank you for those who sought out help over the weekend! The test for Unit 8 is still this WEDNESDAY!!!!!! It will just be virtual. The window for the test is 10AM – 2PM. Be aware!!!
Key Topics Today:
- Continental Drift and Plate Tectonics
- Seismic Waves
- Sound Waves
- Light Reflections/Rarefaction