Check Your Understanding: Light and Sound

Master light and sound waves! Understand reflection, refraction, EM spectrum, and wave types.

Wave Behaviors Match the correct wave interaction (reflection, refraction, diffraction and interference) with its definition. Occurs when a wave bounces off of an obstacle Reflection Occurs when a wave passes through a small opening and spreads out or changes direction and bends around an obstacle. Refraction Occurs when two waves traveling in the same medium towards one another run into one another and either add their energies or cancel their energies Interference change in direction of waves as they pass through an opening or around a barrier in their path. Diffraction MORE WAVE REVIEW 1.) Fill in the parts of the EM Spectrum.*It must look exactly like the word bank- watch out for capital letters* Infrared UV X-rays Radio Visible light Microwaves Gamma Radio Microwaves Infrared Visible light UV X-rays Gamma 2.) Which side of the electromagnetic (EM) spectrum has low wavelength, high frequency, and high energy? Left Right 3.) Which side of the electromagnetic (EM) spectrum has high wavelength, low frequency, and low energy? Left Right 4.) What type of waves make up the EMS? Transverse (Sound) Longitudinal (Light) Transverse (Light) Longitudinal (Sound) 6.) Click on the dots to label the parts of the waves. WORD BANK:rarefaction | compression | wavelength rarefaction compression wavelength 7.) What type of wave is pictured above? longitudinal transverse 8.) Click on the dots to label the parts of the waves. WORD BANKamplitude | wavelength | crest | trough | equilibrium amplitude wavelength trough crest equilibrium 10.) What type of wave is pictured above? longitudinal transverse 12.) Fill in the blanks to the paragraph written below discussing sound. Soundis a type of energy that needs MATTER to travel. When sound energy moves matter, this is called VIBRATION. Sound waves are also called COMPRESSION OR LONGINTUDINAL waves. COMPRESSIONS are the parts of the wave that are close together and RAREFACTIONS are the parts of the wave that are spread apart. Sound waves also bounce off and interact with surfaces. Some animals use ECHOLOCATION or the bouncing of sound waves off of matter to see where they are going. Scientists and military use SONAR underwater to learn about what is in the ocean.