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Amped up A whole lotta shakin’ goin’ on Good vibrations 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4pt 4 pt 4pt 5pt 5 pt 5 pt 5 pt 5 pt Audio File I heard that 1pt It’s the frequency of a sound wave. A sound wave has this form. 1 PT Pitch Mechanical waves such as sound waves travel fastest through this Solids (the particles are closest together). 2 PT A sound wave is this type and form of wave. 3 PT Mechanical and longitudinal (or compressional) It’s another name for the energy of a wave; related to the amplitude 4 PT Intensity It’s the spread-apart portion of a sound wave 5 PT rarefaction Loudness is measured in these units 1 PT Decibels (dB) This wave phenomenon is caused by a shift in frequency due to the motion of the source of a wave relative to the observer. 2 PT The Doppler Effect It’s the direction a galaxy is moving when the galaxy is perceived to be red shifted. 3 PT Away from the observer Ships use this technology with sound waves to locate submarines under water. 4 PT SONAR The character of this determines the speed of any wave. 5 PT The medium through which the wave travels The unit for frequency (and pitch) 1 PT Hertz (Hz) It’s the type of wave shown below 2 PT transverse It’s the speed of a sound wave that has a frequency of 33.3 Hz and a wavelength of 10 m. 3 PT 333 m/s It’s the type of relationship that exists between frequency and wavelength 4 PT Inverse relationship The number of nodes, antinodes and wavelengths shown below 5 PT 4 nodes, 3 antinodes and 1 ½ wavelengths This body seismic wave arrives second at a seismic station and cannot travel through liquids. 1 PT S-wave A spreading zone develops at this type of plate boundary, sometimes forming a mid-oceanic ridge A divergent plate boundary 2 PT This type of crust is more dense and thinner than the other. 3 PT Oceanic crust The proposed mechanism for the movement of the lithospheric plates Convection in the mantle 4 PT The two reasons that the interior of the Earth is hot. 5 PT Heat from Earth’s formation (gravitational contraction and extraterrestrial impacts) and decay of radioactive nuclides It’s the normal audible range of hearing for humans 1 PT 20 – 20,000 Hz It’s the two terms used to describe frequencies above and below our normal range of hearing 2 PT Infrasound (below) and Ultrasound (above) These types of waves travel slowest through solids and fastest through a vacuum 3 PT Non-mechanical waves (light waves or electromagnetic waves) This wave phenomenon develops when the vibrations of one object match the natural frequency of another object, causing it to increase in amplitude. 4 PT resonance This wave phenomenon occurs when two identical waves constructively and destructively interfere to form nodes and antinodes. 5 PT Standing waves