with 100% correct answers
study the two images.
a. https://cdstools.flipswitch.com/asset/media/553979
b. https://cdstools.flipswitch.com/asset/media/553980
what types of waves are pictured? - correct answers ✔✔a is a transverse wave and b is a longitudinal
wave
sound waves move through some liquid at a speed of 1500 m/s. if the wavelength is 3 m, what is the
frequency of the wave? - correct answers ✔✔500 hz
a light wave travels through space at a speed of 3 x 108 m/s. if the wavelength of some light wave is 2
x10-3 m, what is the frequency of the wave? - correct answers ✔✔1.5 x10^11 hz
which choice correctly identifies bands in the electromagnetic spectrum? select all that apply - correct
answers ✔✔radio waves
microwaves
a converging lens can be defined as - correct answers ✔✔XXX a lens that causes parallel light rays to
bounce off the surface
a sound wave with a frequency of 400 hz is moving through a solid object. if the wavelength of the sound
wave is 8 m, what is the speed of sound traveling through the solid object? - correct answers ✔✔3200
m/s
, which of these describes a wave being reflected? - correct answers ✔✔the wave encounters some
obstacle or change in medium. the wave bounces off the surface and moves in a different direction, but
at an angle equal to the one at which it hit the surface.
as microwave light travels through a liquid, it moves at a speed of 2.2 x 108 m/s. if the frequency of this
light wave is 1.1 x 108 hz, what is the wavelength of this microwave? - correct answers ✔✔2 m
which of these choices most accurately describes how particles move in a transverse wave? - correct
answers ✔✔XXX particles in the medium move perpendicular and parallel to the direction of the wave.
which choice correctly describes a characteristic of an electromagnetic wave? - correct answers ✔✔an
electromagnetic wave in a vacuum moves at the speed of light in a vacuum.
light hits a clear plastic bottle and a granite rock. which choice most accurately describes the effect of
visible light on the clear plastic and a grey rock? - correct answers ✔✔visible light is absorbed by the
rock and the plastic making both objects warmer. some of the light hitting the plastic is reemitted,
allowing visible light through the plastic. none of the light hitting the rock is reemitted.
a lens that is thinner in the middle and thicker at the ends, and separates light rays that pass through it
would be which kind of lens? - correct answers ✔✔a diverging lens
a beam from a flashlight hits a piece of black coal and a piece of metal located 1 m away. the metal
appears shiny compared to the coal. which of the following choices correctly explains how the light
interacts with the coal and metal in this situation? - correct answers ✔✔XXX the metal appears shiny
because it received more of the light's energy initially, so it is able to reflect a greater amount of light
than the coal.
study the image.
https://cdstools.flipswitch.com/asset/media/548907
which type of behavior is depicted in the image? - correct answers ✔✔refraction