Traveling Sound
Sound is a form of energy that travels in these.
What are waves?
Guitars can play different notes because each string has a different _____.
What is pitch?
This is the specific term for a sound that is reflected off a surface and heard a second time
What is an echo?
This happens when sound waves hit flat, hard surfaces.
What is reflection?
Between light and sound, this one travels much, much faster.
What is light?
Sound travels fastest through this state of matter.
What is solid?
This is the measurement of how loud or soft a sound is.
What is volume/intensity?
This is a high-frequency sound that is too high for humans to hear, often used by doctors to "see" inside the body.
What is ultrasound?
This is the amount of energy a sound wave carries; it is determined by the "force" of the vibration.
What is intensity?
True or false
Light can travel through vacuums.
What is True?
True or false
Sound waves cannot travel through water.
What is false?
A sound with a high frequency (vibrating very fast) will have this kind of pitch.
What is a high pitch?
This occurs when an object, like a jet, moves faster than the speed of sound.
What is a sonic boom?
True or false
Some sound waves can be seen with the naked eye.
What is false?
This weather event proves light is faster than sound because you see the flash before you hear the boom.
What is lighting and thunder?
Sound cannot travel through this "empty" area because there are no particles to vibrate.
What is a vacuum?
This is the unit used to measure how loud a sound is.
What are decibels?
This effect explains why a siren sounds higher-pitched as it moves toward you and lower-pitched as it moves away.
What is the Doppler effect?
This is the distance between the top of one wave and the top of the next wave.
What is wavelength?
While sound waves need to vibrate atoms or molecules to move, light waves do not need any of these to travel.
What is matter?
Thunder is an example of a__________.
What is a sound wave?
If you increase the energy or "height" of a sound wave, you are increasing this.
What is amplitude?
This technology uses reflected sound waves to map the ocean floor.
What is sonar?
This is the unit used to measure how many vibrations happen per second.
What is Hertz
True or false
Sound can travel through solids.What is true?