Name:_____________________________________________________________________________________________________________
Electromagnetic Spectrum Notes (Unit 3.1-3.2)
ELECTROMAGNETIC RADIATION

Electromagnetic radiation is energy that is transmitted from one place to another by _______________.

Not all forms of electromagnetic radiation are ____________________.

In fact, most electromagnetic radiation ___________________ be seen.

_______________, gamma rays, microwaves, radio waves, __________________, ultraviolet light, and visible
light are some of the types of electromagnetic radiation.

Electromagnetic radiation is known to travel in __________________ waves.
ELECTROMAGNETIC SPECTRUM


Lists all forms of electromagnetic radiation.
The various types of radiation differ in _______________
and frequency .
WAVELENGTH AND FREQUENCY

Wavelength is the ______________________ between
two consecutive waves.

The symbol for wavelength is _____ (Greek letter lambda)

Wavelength is measured in __________________.

Frequency is the number of wave ___________ that pass by a certain point in a given time _______________.

The symbol for frequency is _______ (Greek letter nu)

Frequency is measured in Hertz (Hz) or the number of ______________ per _______________.
PRACTICE

Which wave has a greatest frequency?

Which wave has a greatest wavelength?
RELATIONSHIP BETWEEN WAVELENGTH AND FREQUENCY

Wavelength and frequency have an_______________ proportional
relationship.

As one increases the other ___________________ and vice versa.

This relationship can be summarized by the following equation:

c=λν
C= the ______________ of light (roughly 3.0 x 108m/s)
Name:_____________________________________________________________________________________________________________
PRACTICE:

Which type of electromagnetic radiation has the greatest
wavelength?

Which types of electromagnetic radiation has the greatest frequency?
VISIBLE LIGHT SPECTRUM

Which color light has the greatest wavelength?

What type of light has the greatest frequency?

How can you remember the colors in orders from least frequency to greatest?
DUAL NATURE OF LIGHT

All forms of electromagnetic radiation have ____________-like properties.

However, these types of light also behave like ________________ at times.

For this reason we say that electromagnetic radiation has a ___________ wave-particle nature

Picture each particle of light carrying a ______________ quantity of energy called a _______________.

These particles of light are known as _____________.

Each color of light carries a __________________ quanta of energy.

The amount of _____________of a photon is the frequency of the light times a constant h. (Planks constant)
h=6.626 x 10-34J s
o
E photon=hν
PRACTICE

Which color photon would have the greatest amount of
energy?

Which would have the least?