Parts of a Wave
What is the highest point on a wave?
Crest
T or F, Radiant energy travels by radiation.
T
Give an example of Spectroscopy.
Anything that involves the splitting of light/electromagnetic waves. (The lit elements and their colors in class)
What is an atom made up of?
Protons, nuetrons, and electrons.
Define radiation
What is the lowest point of a wave?
Trough
What does the electromagnetic spectrum represent?
The different forms of electromagnetic radiation.
What does spectroscopy show you?
What elements are present, through what wavelengths of light are emitted or absorbed.
Where are electrons found?
They are negatively charged, surrounding the nucleus of an atom.
What are X-rays
Short wavelengths with very high energy. Used for photographs of bones and airport security.
The _ is the measure of the number of waves that pass a point in a given amount of time.
Frequency
What type of electromagnetic wave has the highest energy?
Gamma rays
How can you tell when certain elements are present when using spectroscopy?
The lines found in the rainbow emitted by the light need to match up with the elements.
What electron in an atom is positively charged?
Protons
What is the electromagnetic spectrum?
The range of all types of EM radiation
Define wavelength
The distance from one crest to the next crest.
Radiant energy is an example of what kind of light?
Visible light
When is spectroscopy used?
To identify and quantify substances, especially in stars/light.
List the 3 electons from positive to negative.
Protons, neutrons, electrons
What is visible light
Wavelengths that the human eye can see. Ranging from red-violet.
If the wavelengths are shorter, then the frequency _.
increases
List the spectrum from lowest wavelength to highest wavelength.
Radiowaves, microwaves, infrared waves, ultraviolet waves, X rays, gamma rays.
What does spectroscopy tell you about the surface of Mars?
It contains sodium, hydrogen, lithium, and helium.
How many electrons in Iron?
26
What are Radiowaves?
Lowest frequency, longest wave length, electromagnetic radiation.