Mrs. Harrison's 8th Grade Science

Video Study Guide for Ch 1 Test

Transverse vs Longitudinal Waves

• Note that in both waves, the energy moves left to right
• Transverse wave medium moves up and down, perpendicular to the energy movement
• Longitudinal wave medium moves left to right, parallel to the energy movement

Labeling Waves

• Transverse wave labeled between time 1:12 and 1:40
• Longitudinal wave labeled between time 1:52 and 2:08

Flow of Energy, Not Matter

• Start at 0:39
• Visual of how the water waves do not push the matter forward

Wave Motion Explanations

• Frequency 0:51
• Skip Period, you won’t be tested on that
• Wavelength 2:08
• Amplitude 2:41

Wave Behaviors

• Reflection 0:41
  • Example: Mirror
  • Example: Echo
• Transmission 1:09
  • Example: Light through window
• Absorption / Reflection 1:18
  • Example: Color / black / white objects
  • Example: Ways to absorb sound
• Refraction 2:25
  • Example: Air & glass have different densities
  • Example: Straw / glass
• Diffraction 3:08
  • Example: Loud speakers
• Scattering 3:38
  • Example: Earth’s atmosphere

Wave Song

• I have no words…. I’m still laughing.