Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/5

Click to flip

5 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)
If you are in front of a fast moving train, will the pitch be higher or lower than the original sound coming from the train?
Higher.
The waves in front of a moving object will be compressed.
If a fast moving ambulance passes you, will the pitch of the siren be higher or lower than the original sound of the siren?
Lower.
The sound waves will be further apart as they reach you after the ambulance has passed.
If you are in a car moving fast toward a stationary tornado siren, will the sound be affected by the doppler effect?
Yes--the pitch will be higher.
Can the siren tell if you are moving or if it is moving? No.
Explain how the wave produced by a speed boat shows the doppler effect.
The wave in front of the boat is compressed; the wake behind the boat is spread way out.
Think about compressed waves--where would they be relative to the boat?
If sound waves are closer together, will the frequency of the sound be higher or lower?
Higher.
The crests of waves that are closer together will have a higher pitch than waves that are further apart. How is pitch related to frequency?