1) Sound is a form of a) sight b) part c) energy d) game 2) Flute is a type of___________ instrument a) read b) wind c) string d) ghana vadya 3) Frequency= a) 2/time period b) 1/time period c) 3/time period d) 4/time period 4) Carpets and curtains absorb sound. a) true b) false 5) Amplitude and frequency are two important characteristics of a) Light wave b) sound wave c) heat wave d) all of the above 6) Which animals can hear ultrasonic sound a) crow b) Cow c) bat d) dog

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