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CM 1 - Science Sound revision

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    Cambridge Level 5 Sound
  •   Study   Slideshow
  • What is sound? ๐ŸŽง
    Sound is energy that travels to your ears.
  •  15
  • What is a vibration? ๐Ÿ”
    A quick back-and-forth movement that makes sound.
  •  15
  • All sounds are made by something vibrating. True or False? โœ…
    True
  •  15
  • What is volume? ๐Ÿ”Š
    How loud or quiet a sound is.
  •  15
  • What is pitch? ๐ŸŽถ
    How high or low a sound is.
  •  15
  • Which has a high pitch: a whistle or thunder? ๐Ÿฆ
    A whistle.
  •  15
  • Which has a low pitch: a birdโ€™s chirp or an elephantโ€™s rumble? ๐Ÿ˜
    An elephantโ€™s rumble.
  •  15
  • What unit measures loudness? ๐Ÿ“
    Decibels (dB).
  •  25
  • What tool measures sound levels? ๐ŸŽš๏ธ
    Sound level meter.
  •  15
  • What does high-pitched mean? ๐ŸŽคโฌ†๏ธ
    The sound has fast vibrations.
  •  15
  • What does low-pitched mean? ๐ŸŽคโฌ‡๏ธ
    The sound has slow vibrations.
  •  15
  • What is a fair test? โš–๏ธ
    A test where only one thing changes.
  •  15
  • What is the independent variable? ๐Ÿงช
    The one thing you change on purpose.
  •  15
  • What is the dependent variable? ๐Ÿ“Š
    The thing you measure.
  •  20
  • What are control variables? ๐ŸŽฏ
    Things you keep the same to make the test fair.
  •  15
  • What happens when you put a pillow over a speaker? ๐Ÿ›๏ธ๐Ÿ”Š
    The sound becomes quieter (muffled).
  •  10