Waves, Light and Sound Flashcards
Trough
the lowest point of a transverse wave
Resonancy
adding energy at the natural frequency of an object
Crest
highest point of a transverse wave
Wavelength
length from one trough to the next
Standing wave
a wave in a medium in which each point on the axis of the wave has an associated constant amplitude.
Diffraction
the bending of light around the corners of an obstacle or aperture into the region of geometrical shadow of the obstacle
Amplitude
measures the energy of the wave
Rarefaction
the more spread out coils in a longitudinal wave
Wave
repeating disturbance that transfers energy through matter or space
Refraction
waves bending because of a change in spped
Transverse wave
the medium vibrates perpendicular to the direction the wave travels in
Compression
when you squeeze the coils of a spring together
Medium
the material through which a mechanical wave travels
Interference
when two waves combine to form a new wave
Sound is the transfer of….
energy
Sound travels fastest in:
solids
For a sound with a low pitch, what is also low?
frequency
Sound can not travel through…
empty space
Doppler Effect
the change in pitch or wave frequency due to the source of the sound wave moving relative to the listener
Use of X-Rays
take images of the human body
Use of microwaves
Television Satellites
Use of radio waves
TV video and audio signals
Use of ultraviolet and gamma rays
Kills germs
Use of Infrared waves
Heat transmission from the sun
Electromagnetic
Waves made by vibrating charged that can travel without a medium
Gamma rays
Highest frequency electromagnetic waves
Gps
System of satellites, ground monitoring stations, and receivers that can determine a persons location
Microwaves
Radio waves in wavelengths less than a meter
Photons
Particles of radiant energy
Radio
Electromagnetic waves with the longest wave length
