Waves Flashcards
How does a lens form an image
Light is refracted into the focal point
Types of lens
Concave and convex
What do waves transfer
Energy
Speed of sound in air
340m/s
What happens when Waves at the boundary of two materials
It refracts and changes speed
Equation for magnification of a lens
Image size / object size
Human hearing
20 to 20000hz
Oscilloscope
A machine that show the waves shape of an electric signal
Speed of all em waves
300×10⁶m/s
Examples of medical uses of xray
Seeing bones,internal images
Reflection from a smooth surface
Specular reflection
Reflection from rough surface
Diffuse reflection
What determines the color of a visible spectrum
Frequency/wavelength
How does a prism split white light
Retracts different frequencies of light
List the colours of the visible spectrum in order
Red,orange,yellow,green,blue,indigo,
Violet
State em spectrum in order of increasing frequency
Radio microwave infrared,visible uv x Ray gamma
Example of medical use through gamma rays
Cancer treatment and sterialization of medical equipment
What happens to waves when it refracts
Wavelength and frequencies change
Differences between myopia and hyperopia
Myopia short sighted can see stuff close to the other one is long sighted can see stuff far away from them
Wavelength of high and low pitch
High has long frequencies
Low has short frequencies
Two uses of em spectrum
X rays see internal structures
Microwaves for cooking
Amplitude
The height from rest to the topos wave
Wavelength
Length wave from one point of the wave to the same point of the other wave
50 hz meaning
50 vibrations per sec
Longitudinal
Vibration is parallel to energy transfer
Transverse
Vibration Perpendicular to energy transfer
Equation for frequency wavelength and wave speed
v = f λ .
I wouldn’t say that the ways are in the Water moving not the water that
When the rubber duck thing is moving in the water is up and down not side to side
What’s an ultrasound
Medical imaging shattering of kidney stones
What is the wave equation
Wave speed = frequency x wavelength
How do you sound travel how they pass through the ear
Longitudinal wave through.
The Pinner then eardrum then ossicles then cohlea auditory nerve then brain
Visible spectrum in order of the smallest frequency
Violet indigo blue green yellow orange and red
Transparent
Light can pass through freely
Translucent
Some light can pass through
Opaque
Lights can’t pass through
