Sound: the Traveling of Sound

The video tutorial explains how vibrations produce sound, which travels through a medium as energy in the form of waves. Sound waves are longitudinal, with molecules moving parallel to the wave direction. A slinky is used to demonstrate this movement, highlighting areas of compression and rarefaction. The distance between consecutive compressions or rarefactions is defined as the wavelength.

What is necessary for sound to travel?

• A medium

• A solid object

• A light source

• A vacuum

How do molecules move in longitudinal waves?

• Perpendicular to the wave direction

• In a zigzag pattern

• In a circular motion

• Parallel to the wave direction

What is demonstrated by the slinky in the video?

• Transverse waves

• Longitudinal waves

• Electromagnetic waves

• Surface waves

What is the term for the area where the rings of a slinky are pushed together?

• Rarefaction

• Amplitude

• Compression

• Frequency

What is the wavelength in a longitudinal wave?

• The time it takes for one wave to pass

• The distance between two compressions

• The height of the wave

• The speed of the wave