Waves practice

Identify the parts of the wave. Be careful with your spelling Word bank: crest, trough, line of origin, wavelength, amplitude. wavelength line of origin trough amplitude crest Match the word to its meaning Medium any substance a wave moves through Wave a disturbance that transfers energy Mechanical wave A wave that transfers energy through matter Electromagnetic wave A wave that does not need matter as a medium to be able to transfer energy Calculate the speed of the following waves using the information provided. Show the equation you are using and the results! 1. λ= 0.2 m, f = 5 Hz2. λ= 15 m, f = 3 Hz3. λ= 2 m, f = 0.6 Hz4. A rock falls off a cliff into a river below. This creates waves that are 1.5 m apart, occurring at a frequency of 0.5 Hz. What is the speed of the waves created by the fallen rock? Sort which statements are true and which ones are false. True Some waves do not require a medium. All waves transfer energy from one place to another. False All electromagnetic waves are beneficial to our health. Diffraction and reflection are synonyms. Fill in the blanks with the appropriate words A wave is a disturbance that carries energy from one place to another.Matter is NOT carried with the wave! A wave can move through matter (a medium). If it must have a medium, it is called a mechanical wave. If it can travel without a medium (such as in space), it is called an electromagnetic wave.Wave properties depend on the energy being carried.1. wavelength: The distance between one point on a wave and the exact same place on the next wave.2. frequency: How many waves go past a point in one second; measured in hertz (Hz). The higher the frequency, the more energy in the wave.3. wave speed: Depends on the medium the wave is traveling in. This varies in solids, liquids and gases.