click below
click below
Normal Size Small Size show me how
Mystery Science
Grade 4 Waves of Sound
Question | Answer |
---|---|
wavelength | the term scientists use to describe how 'squished together' or 'spread out' a wave is. |
pitch | the highness or lowness of a sound (but not how quiet or loud the sound is) |
volume | is how quiet or loud a sound is |
vibration | back-and-forth movement of something |
oscilloscope | a device that shows sound waves like a graph, in a sideways view |
wave | the traveling movement created by a vibration in the water or air |
vacuum pump | a device that can remove the air from a container, allowing scientists to study what it's like in outer space. |
pitch | pitch the highness or lowness of a sound |
echo | reflected sound that bounces off of a surface and repeats itself |