Sound Properties and Behavior

Coach Spivey and his son Jordan present a science tutorial on sound properties and the Doppler effect. They explain how sound travels through different media, focusing on speed, intensity, loudness, frequency, and pitch. The Doppler effect is demonstrated with examples, showing how sound frequency changes with movement. The video concludes with a check for understanding and a positive message.

Which medium allows sound to travel the fastest?

• Steel

• Water

• Air

• Vacuum

What is the speed of sound in air?

• 1,000 feet per second

• 1087 feet per second

• 4629 feet per second

• 60,850 feet per second

How is sound intensity measured?

• In Watts

• In Decibels

• In Joules

• In Hertz

What happens to loudness as intensity increases?

• Loudness fluctuates

• Loudness increases

• Loudness remains the same

• Loudness decreases

Which sound has a higher decibel level?

• Siren

• Normal conversation

• Rustling leaves

• Vacuum cleaner

What determines the pitch of a sound?

• The medium through which sound travels

• The amplitude of sound waves

• The frequency of sound waves

• The speed of sound

A high frequency sound wave will have what kind of pitch?

• No pitch

• Variable pitch

• High pitch

• Low pitch

What causes the Doppler effect?

• Change in sound medium

• Change in sound amplitude

• Movement of sound source or listener

• Change in sound intensity

As a sound source moves away from a listener, what happens to the frequency?

• Frequency increases

• Frequency decreases

• Frequency remains constant

• Frequency fluctuates

What is the effect on sound when a car moves closer to you?

• Sound pitch decreases

• Sound becomes louder

• Sound frequency decreases

• Sound becomes softer