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1. Sound waves are longitudinal waves. 2. As the teacher talks, students hear the voice because particles of air move from the mouth of the teacher to the ear of the student. 3. Sound waves are mechanical waves. 4. All sound waves are produced by a vibrating object. 5. A sound wave does not consist of crests and troughs. 6. Mac is talking to Kate.
Sound is the movement of compression waves (longitudinal waves) hitting our ears. These compression waves are alternating high and low pressure areas. The air molecules vibrate back and forth, but don't move. Speakers imitate sounds by pushing air and causing vibrations.
I In a transverse wave, the particles vibrate parallel to the direction of travel of the wave. II Light waves and water waves are both transverse waves. III Sound waves are longitudinal waves.
Sound is a waveform made from vibrating matter. The sound wave travels through matter—especially air—in a straight line. When the wave hits a different material, some of it is reflected, absorbed and transmitted through the material. In the case of a sound wave in air hitting a solid wall, most of the sound is reflected.
A sound wave with its characteristic pattern of compressions and rarefactions is shown below. A centimeter ruler is included below the pattern. The wavelength of this sound wave is __~1.7__ cm. The pitch of a sound is directly related to the __frequency__ of the sound wave.
Waves Study Guide Answer Key. 1. What is the top of a wave called? Crest. 2. What is the bottom of a wave called? Trough. 3. What is frequency? How many waves go past a point in one second; unit of measurement is hertz (Hz). 4. If a wave is traveling at 60 cm/second and has a wavelength of 15 cm, what is the frequency?
Physics P Worksheet 9-4: Waves 8. Consider a wave generator that produces 10 oscillations per second. The speed of the waves is 300.0 cm/s. a. What is the wavelength of the waves? b. What happens to the wavelength if the frequency of pulses is increased? 9. A wave on a lake passes by two docks that are 40.0 m apart. a.
