Starter quiz

  • How does sound travel?
    • in waves in all directions  ✓
    • in waves only to the listener
    • in dotted lines from the sound source to the ear
    • in zigzag lines in all directions
  • What is a vibration?
    What is a vibration?
    • when an object moves backwards and forwards very quickly  ✓
    • a type of sound produced by an object
    • a way to measure sound
  • How do we hear sounds?
    How do we hear sounds?
    • Sounds travel to our ears like a vibrating laser beam.
    • Our ears vibrate and the vibrations travel to the object which makes a sound.
    • The object vibrates and the vibrations travels through a medium to our ears.  ✓
  • A medium can be a solid, liquid or a ...
    A medium can be a solid, liquid or a ...
    • 'gas' ✓
  • Starting with a crowd at a stadium, put these sounds in order of loudest volume to quietest volume.
    • 1
      crowd at a stadium
    • 2
      alarm of a clock
    • 3
      electric toothbrush
    • 4
      whispering
  • What do we use to measure how loud or quiet a sound is?
    • a sound meter app  ✓
    • a ruler
    • a model of an ear
    • a thermometer
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