Speed of Sound and Sound Waves

3. Describe the two parts of a sound wave

- The rarefaction is where the particles of the medium are spread out - The compression is where the particles of the medium are close together

2. What is needed to create a sound wave?

A vibration from a source of energy

5. Where does a sound wave have the most energy and produce the loudest sound?

Areas with the highest amplitude which are, Closest to the source.

7. What are the three factors that affect speed of sound?

Density of the medium, temperature of the medium, and stiffness of the medium.

9. How does stiffness affect the speed of sound?

Sound travels more quickly in stiff media than in not stiff media. Sound travels the fastest in solids, than liquids, than gasses.

8. How does temperature affect the speed of sound?

Sound travels more slowly at lower temperatures than at higher temperatures. Particles move faster at higher temperatures in liquids and gas. When it's hotter molecules have more energy.

6. How does density effect the speed of sound?

The denser the medium is, the slower the speed will be, because it is harder for particles to get through dense crowded mediums.

1. What kind of waves are sound waves?

Longitudinal Waves, which are mechanical waves

4. Know the mediums sound waves can and can not travel through

Mediums they can travel through: Solids Liquids Gasses Medium can't travel through: Vacuums like space