Show:
Waves
Math!
Human Hearing
More Waves
Eyes
100
What are the two kinds of waves (how do they travel)?
Transverse, longitudinal
100
What is the speed of sound?
344 m/s in the air at 20 degrees Celsius
100
What are waves with frequencies above human hearing called?
Ultrasonic
100

What are the two different words that use a reflected wave?

sonar and echolocation

100

What parts of the eye see color and light/dark?

cones and rods

200
What waves can be seen?
Visible light spectrum
200
What is the formula for measuring waves?
v = λ × f, or velocity equals wavelength times frequency
200

What are waves with frequencies below human hearing called?

Subsonic/infrasonic

200
What is refraction?
Bending of waves when passing from one medium to another
200

what type of lens will correct nearsightedness

concave

300
What is the chart that organizes the different types of waves?
The electromagnetic spectrum
300
Find the velocity of a wave in a wave pool if its wavelength is 3.2 m and its frequency is 0.60 Hz.
1.92 m/s
300
What is the skin stretched tight in your ear that amplifies sound waves called?
Eardrum
300

Describe how polarized lens will work?

Will block some of the light rays so that the glare will be reduced

300

What type of object will reflect the most light - opaque, translucent or transparent

opaque

400
What waves are detrimental to human health?
Any that emit radiation (x-rays, gamma rays, etc.)
400
An earthquake produces a wave that has a wavelength of 417 m and travels at 5000 m/s. What is its frequency?
12 Hz
400

What 3 bones make up the ossicles (both names)?

Malleus/hammer - Incus/anvil - stapes/stirrup

400
Define diffraction.
The bending of a wave as it moves around an obstacle or passes through a narrow opening.
400

What is the clear liquid called, found between the cornea and iris

aqueous humour

500
Name all the types of waves from lowest to highest frequency.
Radio waves, microwaves, infrared, visible light, ultraviolet, soft x-rays/ hard x-rays, gamma rays
500

What is the period of a wave with a frequency of 8 Hz?

1/8

500
What unit is used to measure the amplitude of sound?
Decibels
500
What is the Doppler effect?
A change in wave frequency caused by movement of sound source, motion of the listener, or both.
500

what is the outermost, middle, and interior portions of the back of the eye?

sclera, choroid, retina