Flashcards
Science test flash cards
Flashcards do conjunto (34)
- 1Longitudinal Wavewhen particles follow in the same direction as the waves
- 2What do sound waves pass throughG
- 3Vibrating object producesound waves
- 4Region where molecules are closer togethercompression
- 5The region where objects are farther apartrarefraction
- 6wavelengtha
- 7Frequencynumber of wavelengths in one second
- 8The faster the object isthe higher the frequency is
- 9a faster the object moves meansit is denser
- 10The faster a wave can move through an object isthe stronger the forces are
- 11Decibalthe unit of measurement of how loud it is
- 12The greater a sound waves __________is the louder a sound isamplitude
- 13The production of _____________in matter creates soundvibrations
- 14pitchhow high or low the preception of is
- 15vocal cordswhat we use to speak
- 16Amplitudea sound wave indicates how much energy the sound has
- 17sonar systemsuse reflected sound waves to calculate distance. The distance of an object can be calculated from the time difference between when leaves and returns
- 18________________ is a type of sonar, high-pitched sounds and interpret the echoes reflected from objects. _______________makes it possible for animals to locate prey and detect objects.echolocation
- 19UltrasoundUltrasound scanners use high-frequency sound waves to
make images of internal body parts. The sound waves reflect
from structures within the body. The scanner analyzes the
reflected waves and produces images, called sonograms, of
body structures. - 20Outer Earthe outer ear collects soundwaves
- 21inner earit changes vibrations to nerve signals that travel to the human brain
- 22middle earit amplifies the sound waves. the three tiny bones strengthen the sound waves as they travel to the inner ear
- 23cochelahelps the ear listen, it has tiny hair cells that provide us with hearing an echo
- 24the eardrumhelps block things from getting in to that far
- 25What is light?Light is a type of wave called an electromagnetic wave.
- 26____________travel more slowly when they move through matter.Light waves
- 27_________is something that emits light.A light
source - 28is a narrow beam of light that travels in a straight line.A light ray
(Light rays travel in straight lines until they hit
a surface or pass through a different material. ) - 29absorbtionoccurs when interactions with a material
convert light energy into other forms of energy - 30when light travels through the materialtransmisson
- 31reflectionwhen light bounces off and shows the same image
- 32A material is ____________if it allows almost all light that strikes it to pass through and forms a clear image. A material is opaque if light does not pass through it. Heavy curtains that block light are opaque.transparent
(Window glass is
transparent) - 33A material is __________________ if it allows most of the lighttranslucent
- 34a refracting waveA wave that changes
direction as it travels from one material to
another
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- FlashCards sobre Science test flash cards, criado por Tiana Beckford-Hutchinson em 09-02-2018.
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- Tiana Beckford-Hutchinson
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