1) How do we hear sounds? a) wind carries sound to us b) sound waves make our ear drums vibrate c) light waves signal our brains to hear sound waves d) air carries sound waves 2) Sound is caused by a) ocean waves b) clapping c) vibrations d) music 3) Waves that need a medium to travel through are called? a) medium waves b) mechanical waves c) Longitudinal waves d) electromagnetic waves 4) What type of waves can travel through empty space? a) mechanical waves b) sound waves c) water waves d) electromagnetic waves 5) What is the highest point of a wave a) crest b) trough c) amplitude d) frequency 6) What is the lowest point of a wave? a) crest b) trough c) amplitude d) frequency 7) What is the distance between the center of a wave and its crest? a) crest b) trough c) amplitude d) frequency 8) Which of these are not electromagnetic waves a) micro waves b) sound waves c) radio waves d) x-rays 9) Where do ultraviolet waves come from? a) the moon b) the earth c) the atmosphere d) the sun 10) What waves are mostly used for communication? a) radio waves b) ultraviolet c) micro waves d) x-rays

Waves Review

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