Sound Volume and pitch

Write your name and registration number in answer. Sound is made up of............. Noise Vibrations Air What is the unit of sound? Decibel Decimeter Centimeter Sound can travel through following material. Air Wall Both Read the statements and match them with appropriate answers. Pitch high and low sound volume loud and quiet sound sound vibrations sound level meter measuring sound large vibrations loud sound smaller vibrations quiet sound To mark a word click its first letter then click its last. VIBRATION DECIBEL