Alyssa Flashcards
Pitch
Is related to the frequency of sound waves . A high pitch is made from something being being vibrated fast.
What is a sound wave ?
The particles in the air vibrate in the direction the wave goes .
Infrasound
Is a sound that is below the range of human hearing .
Ultrasound
Any sound above human hearing range
Resonance
Is when a object vibrates so much that it causes the object to vibrate as well.
Intensity
Describes the rate at which a sound wave transmits energy through a given area of the medium .
Decibel
Is a unit rate of which sound is measured by.
Fundamental frequency
When a frequency of a wave is also the frequency of the vibrations .
Harmonics
When something vibrates at its fundamental frequency and at certain whole number multiples of that frequency .
Sonar
Determines distance by measuring the time it takes for sound waves to be reflected back to the source .
Basilar membrane
Long flexible membrane that is in the cochlea
Photon
A unit or quantum of light .
Intensity
Measures the amount of light illuminating or measures how intense the light is .
Radar
A system that uses reflected radio waves to determine velocity and location of objects .
Electromagnetic spectrum
Consist of light at all possible energies frequencies and wavelengths
Light Ray
A light Ray is a imaginary line that goes in the same direction that the light travels .
What is a virtual image
Is a image that you see from a apparent path of light rays .
What is a real image ?
A real image is a result from when light rays are focused into one specific point .
Diffused reflection
Is the reflection of light when the incident ray is reflected .
What is a lens ?
Are transparent material that refracts light waves to make them converge or diverge to create a image .
What is magnification ?
It is a change in size compared to the object .
What is a prism ?
They separate white light from different colors .
What is dispersion
Is what separates colors from other colors in light waves .
What is mirage ?
Is when you look at a road on a hot day and see water on the road that is reflected from the atmosphere to the road .
What is a converging lens?
A converging lens bends light inward .
What is focal point ?
Is when light rays are pointed in one small area .
What is geometrical optics ?
It behaves like a ray would .
What is angle of reflection?
Light rays that deflect off of an object
Angle of incidence ?
Are light rays striking an object
What is law of reflection ?
Angle of reflection and the angle of incidence .
What is normal ?
Normal is a line in the middle of a perpendicular object .
What is a convex mirror
A convex mirror are mirrors that make the image bulge out .
What is a concave mirror ?
A concave mirror is a mirror that makes the image appear to be indented .
What is internal reflection?
Internal reflection is when the angle of incidence is striking somethings boundary .
