1) The distance crest to crest or compression to compression a) trough b) amplitude c) frequence d) wavelength 2) The highest part of a transverse wave a) crest b) trough c) frequency d) wavelength 3) The lowest part of a transverse wave a) crest b) frequency c) trough d) amplitude 4) The amount of energy a wave has (or the distance from the wave at rest to its highest point) a) frequency b) crest c) trough d) amplitude 5) What is not an example of a transverse wave? a) an ocean wave b) birds chirping 6) The energy in a transverse wave moves  a) forward from the source and spreads out b) perpendicular to the medium c) in a straight line 7) The energy in a longitudinal wave moves a) perpendicular to the medium b) forward from the source and spreads out c) in a straight line 8) Waves travel fastest in solids because their molecules are close together a) false b) true 9) If it is hot outside the sound waves (longitudinal waves) passing through the air will a) slow down b) speed up 10) The number of waves that pass a stationary point in one second a) amplitude b) wavelength c) frequency 11) If it is cold outside, the longitudinal waves (sound waves) will travel  a) slower b) faster 12) Which is not a longitudinal wave? a) dogs barking b) people singing c) ocean waves d) bells ringing 13) The transfer of energy from one place to another is called a wave. a) false b) true 14) Transverse and longitudinal waves both have a) troughs b) amplitude c) compressions d) crests 15) Transverse and longitudinal waves need a medium to transfer energy from one place to another. a) false b) true 16) Longitudinal and transverse waves are NOT mechanical waves. a) True b) False 17) The bunched coils in a longitudinal wave are called the wave's  a) crests b) compressions c) rarefactions d) troughs 18) The unit that represents the frequency of a wave is a) m/sec b) Hz (Hertz) c) meters d) There isn't a unit for this 19) Transverse and longitudinal waves both have a) compressions b) wavelengths and amplitudes c) troughs d) rarefactions 20) You would know if a storm is coming close to shore by the ___________________ of the waves. a) frequency of the waves b) compressions  c) rarefactions 21) If a wave has a short wavelength, it will have a low frequency. a) False b) True 22) The wave property that allows us hear our voice. a) diffraction b) reflection c) refraction 23) The wave property that lets us hear people talking in the hallway when we are in the classroom. a) diffraction b) refraction c) reflection 24) This is an example of which wave property? a) reflection b) diffraction c) refraction 25) When a wave passes through an opening and spreads out on the other side it is called a) refraction b) reflecion c) diffraction 26) When a wave bounces off a surface it is called a) reflection b) refraction c) diffraction 27) When a wave changes its speed because it has gone from a gas to a liquid, it is called a) reflection b) refraction c) diffraction 28) A wave with a long wavelength will have a low frequency. 75 Hz a) True b) False 29) Interference is when 2 or more waves combine. a) True b) False 30) Destructive interference is when waves combine and cancel out their amplitudes and then the energy moves on. a) True b) False 31) An example of constructive interference of longitudinal waves is a) at lunchtime in the commons b) When everyone sings Happy Birthday together 32) Constructive interference of waves happens and the amplitude gets higher when the waves meet. a) True b) False

Mechanical Waves

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