Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    3
    ReputationRep:
    Could someone explain the Doppler effect please???? Xx
    Thanks
    Offline

    5
    ReputationRep:
    change in the observed wavelength and frequency of a wave due to it's source of motion - I think
    Offline

    2
    ReputationRep:
    (Original post by EmmanuellaUwaifo)
    Could someone explain the Doppler effect please???? Xx
    Thanks
    When a wave source (anything that emits any type of waves) moves towards the observer, the wavelengths are compressed. Consequently, this causes the waves to have a shorter wavelength, and therefore a higher frequency. As a result of this, (if it is sound waves) the pitch of the sound is higher since the frequency is higher.

    When a wave source moves away from the observer, the wavelengths are stretched. Consequently, this causes the waves to have a longer wavelength, and therefore a lower frequency. As a result of this, (if it is sound waves) the pitch of the sound is lower due to the frequency being lower.

    Hope this helps
    Offline

    1
    ReputationRep:
    Stuff Coming towards you seems to have a higher frequency (and therefore shorter wavelength). Stuff moving away from you seems to have longer wavelengths and lower frequencies.

    Simple as.
    Offline

    1
    ReputationRep:
    Who's done the p1 aqa paper and knows what's coming up today
    Offline

    1
    ReputationRep:
    Start a mark scheme here?
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by lukman200)
    Start a mark scheme here?
    Yeah sure!!!
    My exam finishes at 3:00. 3:30 we commence the grouping of ideas ??
    • Thread Starter
    Offline

    3
    ReputationRep:
    Can anyone also explain kilowatt hours please
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Brussels sprouts
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.