1) What do waves carry from place to place a) energy, but not matter b) matter, but not energy c) both energy and matter d) neither energy nor matter 2) 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 3) What type of waves can travel through empty space? a) mechanical waves b) sound waves c) water waves d) electromagnetic waves 4) What is the highest point of a wave a) crest b) trough c) amplitude d) frequency 5) What is the lowest point of a wave? a) crest b) trough c) amplitude d) frequency 6) What is the distance between the center of a wave and its crest? a) crest b) trough c) amplitude d) frequency 7) Sound is caused by a) ocean waves b) clapping c) vibrations d) music

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