A. Arrange the following letters in order to form a word._____

1. DOUNS- An energy produced by a vibrating object_______

2. SAG-A medium in which sound travels poorly.______

3. SDNOUSARTLU- are used to show the developing baby inside the mother's womb_______

4. RASON- A device capable of sensing short pulses of ultrasonic waves through the water._______

5. CINOSARTLU- sound waves that have high frequencies with short wavelengths.
______

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