Waves And Their Properties.

Match the term to the definition. Use your textbook to help you with this entire worksheet. wave a disturbance that transfers energy from place to place medium the material through which a wave travels mechanical waves require a medium to pass through vibration repeated back and forth, up and down motion Match the terms to the definitions. transverse wave a wave that vibrates the medium at right angles to the direction of travel. crest high point on a transverse wave trough low point on a transverse wave longitudinal wave a wave that vibrates the medium in the same direction in which the wave travels compression where the particles are close together rarefaction where the particles are far apart Fill in the blanks for Surface Waves Surface waves are a combination of transverse and longitudinal waves.The particles of a surface wave do not compress.The up and down, back and forth motion combine to make each particle move in a circle. Choose the correct words or phrases. Amplitude is the maximum distance the medium vibrates from the rest position.High waves carry more energy than low waves.When a compressional wave's particles are dense, the wave's amplitude is large.The distance between two corresponding parts of a wave is wavelength.For a transverse wave, this is found by measuring crest to crest.For a longitudinal wave, this is found by measuring between compressions.The frequency of a wave is the number of waves that pass a given point in a certain amount of time.Frequency is measured in hertz.Speed is how far a wave travels in a given amount of time.Speed of a wave can be determined by dividing the distance by the time. How are Frequency, Wavelength, and Speed Related? Use the three formulas for wave speed, frequency, and wavelength. Make sure you include the proper units! If not, your answers will be marked incorrect. Medium Wavelength Frequency Speed Water 7.5 m 200 Hz 1500 m Water 3.75 m 5400 Hz 20250 m Air (20 C) 10 m 34.3 Hz 343 m Air (20 C) 20 m 17.15 Hz 343 m Fill in the correct parts of the wave. wavelength amplitude crest trough rest position Which wave has the greater frequency? Wave A Wave B What Factors Affect the Speed of a Wave? The speed of a wave through a substance is determined by the substance's physical properties.Light consists of vibrating electric and magnetic fields.Some substances will cause the light to move at a slower speed than through other substances.Sound waves also travel at different speeds through different substances.Temperature is one factor that can affect the speed of sound.Two factors that determine the speed of sound are the compressibility and density of a substance.If these factors increase, then the speed of sound through that substance will decrease. Through which substance does sound travel the fastest? gas liquid solid Use the formula Time = Distance Remember to include the correct units!!!Calculate: How long does it take for a sound wave to travel through 3000 m of water? 150 s 8.74 s 2.02 s 0.59 s