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Sound and Light
Fichas del conjunto (34)
- 1What do light (EMR) and sound have in common (2 things)both are forms of energy
both do not transfer matter - 2what type of waves are EMR (2 clarifications)transverse waves
and
electromagnetic - 3what type of waves are sound (2 clarification)longitudinal wave
or
compression wave
and mechanical - 4what types of waves are ocean waves (2 clarification)transverse waves
and
mechanical waves - 5what is an echoa reflection of sound waves
- 6amplitudethe loudness or volume
- 7what is frequency (definition and changes what about the sound)definition - how many waves pass a point per second
changes the pitch, the higher the frequency the higher the pitch - 8what type of medium does sound travel faster indenser medium
- 9what is an ultrasound used for in medical stuff...fetus, blood flow, thyroid condition
- 10what are the advantages of an ultrasound (3)non - invasive
detect where a tumor is
detect fetus abnormalities without harm - 11disadvantages of an ultrasound (2)is not applicable to every situation
not fool proof (boy girl) - 12what is a cochlear implantsa device that bypass damaged parts of the ear and directly stimulate the auditory nerve
- 13advantage of cochlear implants (2)allows people to hear
not as risky as a brain stem implant - 14disadvantages of cochlear implants (3)still very risky
very expensive
frowned upon in deaf communities - 15from shortest to longest wavelength, the EM spectrumgamma rays - xrays - ultraviolet - visible light - infared - microwave - radio
- 16law of reflectionangle of incidence = angle of reflection, based off the normal
- 17what type of mirror is this ->->->->->->(convex, diverge
- 18what type of mirror is this ->->->->->)concave, converge
- 19refraction isthe changing of the speed of light that results in bending
- 20from a less dense medium to a dense medium the light bendstowards the narmal
- 21from a dense medium to a less dense medium the lights bendsaway from the normal
- 22snell's lawthe refractive index = sin
- 23what is this lens () what does it dobiconvex
it converges - 24what is this lens )( what does it dobiconcave
it diverges - 25long sighted what and how fixedthe light focuses after the retina, they need a concavo-convex lens
- 26short sighted what and how fixedthe light focuses in front of the retina, they need a convexo-concave lense
- 27what are the main colours from longest wavelength to shortest wavelengthROYGBIV
- 28what are the primary colours for lightRED - GREEN - BLUE
- 29advantages for x rayscan see bones
non invasive
can diagnose chest cancers pneumonia - 30how x-rays workthe EM waves pass through the flesh/muscle but not the bones
- 31disadvantages of xraystoo much can cause mutations
- 32advantages of gamma raysnon-invasive
shows organs are working
radiotherapy - 33disadvantages of gamma rayscan cause mutations if over expose
reasonably expensive - 34how gammar ray Pet scans workinject/ingest a radioisotope
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- Fichas sobre Sound and Light , creado por Eleanor Fair el 05/05/2016.
- Creado por
- Eleanor Fair
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