During the Dragon Boat Race at the Dragon Boat Festival, the bursts of drum sounds are produced due to the ____ of the drums, and the drum sounds are mainly transmitted to the human ear through the __

Trial Analysis: Sound is produced by the vibration of an object, and the sound of the drum is produced by the vibration of the drum surface; it is transmitted to the human ear through the air; when rowing a dragon boat, the paddles ply the water backward and the boat moves forward This shows that the role of forces between objects is to each other.