1) What is vibration? a) A straight motion b) A spinning motion c) A back and forth motion 2) What is sound? a) Energy that we can hear b) Energy that we can see c) Food 3) What happens when the vibration stops? a) The pain stops. b) The sound stops. c) We go outside to play. 4) How do you make a guitar sound louder? a) Pluck the strings harder. b) Put your hand over the strings. c) Nothing

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