1) What is number 1? a) crest b) trough c) amplitude d) wavelength e) compression f) rarefaction 2) What is number 2? a) crest b) trough c) amplitude d) wavelength e) compression f) rarefaction 3) What is number 3? a) crest b) trough c) amplitude d) wavelength e) compression f) rarefaction 4) Which of the following is NOT a type of mechanical wave? a) transverse waves b) surface waves c) longitudinal waves d) light waves 5) What is number 4? a) crest b) trough c) amplitude d) wavelength e) compression f) rarefaction 6) What is number 5? a) crest b) trough c) amplitude d) wavelength e) compression f) rarefaction 7) What is number 6? a) crest b) trough c) amplitude d) wavelength e) compression f) rarefaction 8) What is number 7? a) crest b) trough c) amplitude d) wavelength e) compression f) rarefaction 9) Mechanical waves must travel through ___. a) space (a vacuum) b) a medium c) both space and a medium 10) Which wave is longitudinal? a) A b) B c) both d) neither 11) Which wave is transverse? a) A b) B c) both d) neither 12) As you move toward the gamma waves on the EM spectrum, the energy ____. a) increases b) decreases 13) As you move toward the gamma waves on the EM spectrum, the frequency ____. a) increases b) decreases 14) True or False? All electromagnetic waves travel at the speed of light in a vacuum. a) True b) False

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