The Tacoma Narrows Bridge collapsed because strong winds caused it to vibrate at its natural frequency. This resonance increased the vibration amplitude until t

In music, sound waves allow musicians to create different notes and tones by changing the frequency and vibration of instruments.

Doctors use ultrasound to check babies and internal organs without surgery, as it is a safe and non-invasive method.

Amplitude determines the loudness or intensity of a sound — larger amplitude means a louder sound.

The two characteristics are frequency and amplitude.

Sound is produced when an object vibrates, causing nearby air particles to move and form sound waves.

Resonance is when vibrations cause an object to vibrate at its natural frequency.

Sound can travel through solids, liquids, and gases. It travels fastest in solids and slowest in gases.

Frequency determines the pitch of the sound — a high frequency means a high pitch, and a low frequency means a low pitch.