Properties of Waves & Wave motion

Properties of Waves Watch the video and think about what you learned in the last two lessons to help answer the questions that follow. Waves always originate with some person object distrubance Wave motion begins from a center point and moves to the left to the right outward in all directions In physics, a wave is how someone says hello a traveling disturbance that carries energy from place to place. A wave that travels through a material medium is called a radial wave linear wave mechanical wave Waves transfer _ but not _. matter, energy energy, matter sound, energy energy, sound Which type of waves are not mechanical waves; meaning they need no medium to travel through sound water electromagnetic (light) Parts of a Wave Match the correct part to the definition Amplitude (A) displacement of the wave measured from its equilibrium position. Distance from the middle to a crest or trough. Wavelength (λ) Length of one cycle; distance between corresponding points of two consecutive waves. Measured from one crest to the next Period (T) time required to complete one cycle of vibration to pass a given point Frequency (𝜈) number of waves per unit time measured in hertz (Hz). The number of crests of a wave that move past a given point in a given unit of time. Label the Parts of the Wave Label the blue dots with the correct terms. amplitude, crest, trough, wavelength wavelength amplitude trough crest Label the Parts of the Wave Label the blue dots with the correct terms. compression, wavelength, rarefaction wavelength rarefaction compression Which of these cannot travel through the vacuum of space sound light energy Mechanical waves travel at a constant speed through a given medium (material). However, the speed is different for different materials.In which order does sound travel through the following materials slowest to fastest? steel, air, water air, steel, water air, water, steel water, air, steel Watch this quick video clip and then complete the sorting section that follows. Sort the characteristics by clicking each description and choosing which type of wave matches the description. Transverse Waves Also called electromagnetic waves Movement is up and down An example is light Travel perpendicular to the medium Can travel through a medium or a vacuum Longitudinal Waves Also called mechanical or compression waves Movement is back and forth An example is sound Travel parallel to the medium Behavior of Waves Watch the video and use what you learn to complete the matching section that follows. Match the following wave behaviors with the correct definition. diffraction Waves pass through a small opening and then bend around corners to spread out again. refraction A wave bends when entering transparent materials because it changes speed, which changes its direction. reflection A wave bounces off when it hits a hard boundary absorption The behavior of waves that gives objects their color. Occurs when a waves energy dies out in a soft material. Which type of wave is this: longitudinal transverse both neither Which type of wave is this: longitudinal transverse both neither