Wave Patterns and Info Transfer Review

In which medium will sound waves travel the slowest?

• air
• water
• desk
• space

As the amplitude of a sound wave increases, its ____________________

• pitch decreases
• volume decreases
• volume increases
• pitch increases

Which measure determines the pitch of a sound?

• amplitude
• crest height
• frequency 
• distance

When a sound is louder what measurement gets bigger?

• Frequency 
• Amplitude 
• Wavelength 
• Crest

How do computers send messages?

• as light waves through the air
• as patterns of sound waves
• as Morse codes
• as patterns of ones and zeros

An echo is an example of sound wave being?

• reflected
• absorbed
• surfed
• transmitted

Why are sounds not heard in space?

• Space is too cold
• There is too much matter
• Space is a vacuum with few particles
• Energy cannot travel

The larger the amplitude of a sound wave, then the _____________ energy the wave has.

• more
• less

When you scream into a canyon  and hear the reflection of your voice, what are you hearing?

• amplitude
• frequency
• echo
• pitch

Which of the following works by bouncing sound waves off an object and measuring the time the echos take to return.

• pitch
• sonar
• wavelength
• frequency