Term
| what is the purpose of a wave |
|
Definition
|
|
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
|
|
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
|
Definition
|
|
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
|
|
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
|
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
|
|
Term
|
Definition
| a disturbance or vibration of a medium that moves throught the medium |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| sketch a high pitched soft sound wave |
|
Definition
|
|
Term
| sketch a low pitched low sound wave |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| ight travels best through which state of matter |
|
Definition
|
|
Term
| How do transverse waves move |
|
Definition
| perpindiculur to the force |
|
|
Term
| How do longitudinal waves move |
|
Definition
|
|
Term
| what part of the eye has rods and cells? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| why does the eye need fat |
|
Definition
| we need fat to help keep the eye in place and help move it around |
|
|
Term
|
Definition
|
|
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
|
|
