Chapter 12 : Sound

1. How does the sound produced by a vibrating object in a medium reach your ear?

Answer: When an object vibrates and produces sound, the sound waves travel through the air and enter your ear. The sound waves make your eardrum vibrate, which passes the vibrations to tiny bones in your ear. These bones amplify the vibrations and send them to your inner ear. Your inner ear converts the vibrations into signals that your brain understands as sound.

1. Explain how sound is produced by your school bell.

Answer: The school bell makes sound when a clapper inside it hits the bell's surface. This impact causes the bell to vibrate, creating sound waves. These waves travel through the air to our ears, allowing us to hear the bell ringing. So, when the bell is struck, it vibrates and produces the sound we hear in school.