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Waves, science
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- 1Ultrasound. 3 key points.+ Only dogs, cats and other animals like bats can hear it.
+ Anything above 20,000 Hz is ultrasound.
+ Its to high pitch for humans to hear. - 2What is ultra sound used for?Ultra scans.
- 3What are longitude waves?The waves that move sound.
- 4What are transverse waves?The waves that transfer light.
- 5What do sea waves do when they hit the wall.They reflect.
- 6What is adding waves?When you get two waves that are in sync and then they add themselves together and then the wave length becomes much higher.
- 7What is cancelling waves?When you have two waves that are not in sync and the end up cancelling each other out.
- 8What are undulations?The up and down movements in a wave.
- 9At what direction are the undulations in a transverse wave to its direction?90
- 10What type of wave can travel through a vacuum?Only light, transverse waves can.
- 11The seed of light in air is.3,000,000 m/s
- 12The speed of sound in air is.343 m/s
- 13Reflection
- 14What is the incidence ray?The incidence ray is the ray of light that shows you the light going towards the mirror.
- 15What is the reflected ray?The reflected ray is the ray of light that shows you the direction in which the light has been reflected.
- 16The normal line is draw at what angle?90
- 17What properties does the angle of incidence and the angle of reflection both have?The angle of incidence and the angle of reflection has to be equal to each other.
i = r - 18What is diffusion scattering?When light hits a rough surface and gets reflected in different direction.
- 19What is refraction?When waves change speed or direction.
- 20What is a convex lens?A convex lens is a lens that focusses on thing that are far away. Converging lens.
- 21What is a pin-hole camera?A pin-hole camera has a lens that shows things upside down by using a tiny hole at the end of a box.
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- (Science) Everything Fichas sobre Waves, science, creado por viniwillingham el 03/05/2015.
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