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im going to fail and its like 8 and yeah so rip science grad
yeah just read the title
32
Science
6th Grade
04/07/2016

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Cards

Term
what is the purpose of a wave
Definition
transfer energey
Term
WHAT IS THE DIFFERENCE BETWEEN ELECTROMSAGNETIC AND MAGNETIC WAVES
Definition
mechanical waves need a medium to travel through and electromagnetic waves don't
Term
What kind of waves are sound waves
Definition
Mechanical
Term
which of the following is easier for a soud wave to travel through solid, liquid, or gas
Definition
solid because the molecules are packed closer together and it makes the sound easier to travel from molecule to molecule.
Term
How do we measure sound?
Definition
with hertz or decibels
Term
what is pitch how is it measured?
Definition
its wavelength and its mesured in hertz
Term
what is amplitude how is it measured
Definition
its the height of a wave and measured in decibels
Term
Whst determines the speed of sound
Definition
the speed of sound is determined by the medium it travels through
Term
Explain how sound travels through your ear
Definition
first pinna then ear canal then ear drum then hammer stirrup anvil (middle ear), then chocela (inner ear) then auditory nerve then brain
Term
what type of waves are light waves
Definition
electromagnetic waves
Term
what is whitelight? what tool can we use to seperate white light.
Definition
whitelight is a comination of all colors of light prisms are use to seperate it
Term
what is the difference between refracting light and reflecting it
Definition
refracting is when light waves bend and reflection is when light bounces off of something else
Term
why do we see colors
Definition
when light waves hit something it absorbs some of the light and reflects the rest of it.
Term
how do light waves travel through our eye
Definition
cornea (light enters), iris (expands or contracts to let light in), pupil (light travels through), lens (flips image and sends it to the retina), retina (flips image and sends it to the optic nerve), optic nerve (sends image to the brain), brain
Term
list the waves in the EM spectrum from longest to shortest wavelength.
Definition
radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays
Term
what color in the light spectrum has the shortest wavelength
Definition
violet
Term
what is a wave
Definition
a disturbance or vibration of a medium that moves throught the medium
Term
draw a longitudinal wave
Definition
Term
draw a transverse wave
Definition
Term
sketch a high pitched soft sound wave
Definition
Term
sketch a low pitched low sound wave
Definition
Term
draw a concave mirror
Definition
Term
draw a convex
Definition
Term
ight travels best through which state of matter
Definition
gas
Term
How do transverse waves move
Definition
perpindiculur to the force
Term
How do longitudinal waves move
Definition
parallel to the force
Term
what part of the eye has rods and cells?
Definition
Retina
Term
what colors do cones see
Definition
red green blue
Term
why does the eye need fat
Definition
we need fat to help keep the eye in place and help move it around
Term
what does the lens do
Definition
the lens refracts light
Term
what is the job of the vitreous humor
Definition
it helps keep everything where its supposed to be
Term
if the frequency of a wave is lowerred what happens to the wavelength
Definition
increases
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