1-5: Water Dropping, 11-15: Wave on a Rope, 16-18: Sound Waves, 28-30: Waves through a slinky, 31-32: seismic waves, 44-45: Ocean waves, 46-47: Waves made by vibrating matter, such as a vibrating violin string, 59-60: A vibrating tuning fork, 61: Cannot travel through empty space, 75: Any longitudinal wave, 76: Whales and ships send out and detect sound waves., 90: Jackhammer vibrating the ground, 91: Waves made by vibrating speakers, 105: Sound waves, 106: Waves that vibrate an ear drum., 120: Larynx muscles contract to change the pitch a the voice as air molecules are vibrated. , 121: Waves that require a medium (particles) to travel through, 135: An oscillation of matter that transfers energy through a medium, 136-137: Tsunami waves transfer the energy of an earthquake through water all the way to the shore., 149-150: Energy is transferred great distances when Earth's plates slide past each other., 151-153: Feeling someone's stomps on the ground. , 163-165: Sonar (sound waves) from a submarine travel through water., 166: A clarinet's sound is a result of its reed vibrating the air molecules., 168-169: Striking the head of a drum compresses the air inside the drum, which becomes sound that travels away from the drum. , 177-178: A stethoscope amplifies small sounds, such as those made by the heart or lungs. , 180: An ultra sound machine sends out high-frequency sound waves that bounce off organs in the body., 184-185: Ultrasonic toothbrushes use high-frequency, high-intensity sound waves to help remove plaque., 191-192: An ultrasonic sensor measures the distance to an object using ultrasonic sound waves., 199: Sound waves travel much faster in water than in air. , 207: Whales listen for echos to detect food and for navigation. , 21-25: X-rays, 34-42: Radio Waves, 49-57: Visible Light, 63-64: Infrared waves used by remote controls, 67-69: Gamma rays given off by radioactive elements, 72-73: Waves used by cell phone towers, 78: Can travel through empty space and through matter, 83: Microwaves heat food. , 88: Ultraviolet light that causes sunburns, 93: Can only be transverse, 98: Light waves with frequencies on a spectrum, 103: Waves that are created as a result of vibrations between an electric field and a magnetic field., 108-109: Self-driving car using GPS, 113: Red light, the longest wavelength of visible light, has a wavelength of about 650 nanometers.  , 117-118: Violet light, the shortest wavelength of visible light, has a wavelength of 400 nanometers. , 123-133: White light is a combination all the colors of the visible light spectrum.  , 139-141: A rainbow forms as white light enters and reflects off the backside of raindrops. , 145-147: Infrared waves from heaters provide warmth. , 155-156: Sunlight provides the energy needed for plants to make their own food during photosynthesis. , 160-161: Television signals are transmitted using radio waves. , 171-175: Radio waves can be longer than a football field or as short as a football. , 182: Radio waves carry signals to cell phones.  , 187-189: Gamma rays are used to help destroy cancer cells. , 194: RADAR detects radio waves. , 196-197: Ultraviolet light has a wavelength from 10-80 nanometers and is used to destroy bacteria. , 203: Thermal imaging cameras detect infrared waves. , 209-210: Barcode scanners use infrared waves. , 213: An MRI uses magnets and radio waves to help create images of inside a body., 215-221: Astronomers use radio waves from space to learn about planets, comets, giant clouds of gas, stars, and galaxies.  , 223: GPS receivers use radio waves. .

Mechanical or Electromagnetic Waves?

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