Q.1.
Which travels fastest, light or sound?
Q.2.
What can sound travel through?
Q.3.
Sound waves can be reflected off solid objects. When this happens, what do we hear?
Q.4.
Which musical instruments produce lower pitches?
Q.5.
Sound waves can be reflected, transmitted or what else?
Q.6.
When a sound wave hits your ear, it makes the air in your ear vibrate. These vibrations cause what part of your body to vibrate?
Q.7.
Which unit is sound frequency measured in?
Q.8.
When something vibrates quickly, it makes high frequency waves. You hear this as what kind of sound?
Q.9.
Which unit is the intensity (loudness) of a sound measured in?
Q.10.
Why does a guitar produce a lower pitch when you do not press any fingers against a string while plucking it?