Sound
This is the back-and-forth motion of particles in an elastic medium.
vibration
What are vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear
Sound
This is the perceived frequency of a sound
Pitch
This is the term for allowing light to pass through so that objects behind can be distinctly seen.
transparent
What is allowing light, but not detailed shapes, to pass through; semitransparent
translucent
When the Moon passes between Earth and the Sun, blocking all or part of the Sun's light from reaching parts of the Earth's surface
eclipse
This is the measurement of one cycle per second.
Hertz
What is form of mechanical energy produced by the vibration of matter, transmitted through a medium as waves
sound energy
This is musical instrument in which sound is produced by the vibration of air, typically by the player blowing into the instrument.
wind instrument
When light is redirected in various directions, it is referred to as this
scattering
a particle representing a quantum of light or other electromagnetic radiation.
photon
The gaseous layer of the sun
corona
This is what we call sounds faster than the speed of sound.
Supersonic (Mach1 - Mach5)
What is a sound or series of sounds caused by the reflection of sound waves from a surface back to the listener:
echo
A sound wave with a single, pure frequency
Not able to be seen through; not transparent:
Opaque
The SI unit of luminense
LUX
a reddish gaseous layer immediately above the photosphere of the sun or another star which
Chomosphere
This is the number of full cycles performed by an oscillating wave in a second
frequency
The substance through which sound travels
sound medium
Higher-frequency components that give the tone its timbre
This is a device that generates an intense beam of coherent monochromatic light (or other electromagnetic radiation) by stimulated emission of photons from excited atoms or molecules
LASER
The SI Unit of work and energy
Joule
The outer filamentary region of a sunspot.
Penumbra
This is the definition of decibels.
A logarithmic unit used to measure the relative intensity of sound
What is the tendency of a system to oscillate with greater amplitude at specific frequencies
resonance
How are tones created
Tones are created when a vibrating object (e.g., a string, reed, or vocal cord) sets air molecules in motion, producing a periodic pressure wave that travels through the air and is detected by the ear
What is a prism
triangular with refracting surfaces at an acute angle with each other and that separates white light into a spectrum of color
the properties or qualities of a room or building that determine how sound is transmitted in it
Acoustics
What is a full Moon passes partially or entirely through the Earth's shadow, temporarily darkening or reddening its appearance.
Lunar eclipse