Waves
What are waves?
A pattern that transfers energy from one place to another
What is amplitude?
The maximum height of the wave
Sound waves are caused by ______________
Vibrations
What is Ozone?
A gas found in the atmosphere, prevent UV light from reaching Earth.
What does transparent mean?
matter that transmits light
What is a medium?
The material through which a wave travels
What is wavelength?
The distance from any point on a wave to an identical point on the next wave
Sound cannot travel through what?
A vacuum such as space!
In the Electromagnetic Spectrum, which light has the highest frequency?
Gamma Rays
In the Electromagnetic Spectrum, which light has the longest wavelength?
Radio Waves
In the Electromagnetic Spectrum, arrange the following waves, from lowest to highest frequency:
X-RAYS, Visible light, Ultraviolet, Microwaves, Infrared
Microwaves- infrared- visible light- Ultraviolet-X-Rays
What is frequency?
The number of peaks of a wave that pass in a second.
What is matter?
Any thing that has mass and takes up space.
Why do we see some objects as black?
because these objects absorbs all the colors of visible light.
How can I tell if the light was absorbed by an object?
When a change happen to that object
What is melanin? How does it help in preventing cancer?
its a protein pigment produced in the skin cells. It absorbs UV light and prevent it from reaching the genetic material.
What two properties of waves affect the amount of energy of the wave?
Amplitude and frequency
What is pitch?
How high or low you think a sound is
What determines the type of light?
Its wavelength
What is a reflection?
The bouncing of light off a surface
What is required in a mechanical wave?
A medium for the wave to travel through
What type of medium allows sound waves to travel the quickest?
Solids
What is refraction?
refraction is the redirection or bending of a wave as it passes from one medium to another
What is white light?
All the wavelengths of light in equal proportions
What is a light source?
An object that emit light