What Is Sound?: Sound Intensity and Volume

The video tutorial explains the concept of sound intensity and how it relates to loudness. It highlights the difference in sound energy between loud and soft sounds, using examples like a chainsaw and rustling leaves to illustrate these differences. The tutorial also clarifies how loudness is perceived by humans and compares the intensity of different sounds.

What makes it easier to hear someone screaming compared to whispering?

• The frequency of the sound

• The energy of the sound wave

• The pitch of the sound

• The duration of the sound

How is the intensity of a sound wave defined?

• The speed of the wave

• The pitch of the wave

• The frequency of the wave

• The energy the wave carries per second through an area

What does loudness refer to in terms of sound?

• The frequency of the sound

• The perceived volume of the sound

• The duration of the sound

• The speed of the sound

Which sound is likely to have a greater intensity?

• A whisper

• A gentle breeze

• Rustling leaves

• A chainsaw

Why does the chainsaw sound louder than rustling leaves?

• It has a lower frequency

• It has a longer duration

• It has a greater intensity

• It has a higher pitch