I have several ?’s about waves?
What do all types of electromagnetic radiation have in common?
What is different about the different parts of the electromagnetic spectrum?
Which type of radiation has the most energy? How or where is this radiation formed?
Raphael refers to a wave by noting its wavelength. Lucinda refers to a wave by noting its frequency. Which student is correct and why?
How does the energy of the different waves of the spectrum vary with frequency? With wavelength?
What is the frequency range of UV light? Of Infrared light?
If you are use night-vision goggles, what part of the spectrum are you detecting?
Rich says that light is the same thing as electromagnetic radiation. Do you agree or disagree with Rich? Explain your response.
Do all animals see the same frequencies of “visible” light as humans do? Do all animals hear the same frequencies of sound as humans do?
Why do astronomers use frequencies other than the visible ones when they are investigating the universe?
What frequency range does the United States use for FM broadcasting? For AM broadcasting?
What frequency does television channel 7 broadcast at?
How large a band of frequencies does each television broadcasting channel get?
I agree with the person above, you really shouldn’t just post all of your homework up here. But i shall give you some help.
The electromagnetic spectrum, in order increasing frequency, decreasing wavelength, and increasing energy is
Radio waves (Lowest frequency, largest wavelength and lowest energy)
Microwaves
Infrared radiation
Visible light (With red light having the with the lower frequency, larger wavelength and lower energy compared to blue light)
Ultraviolet rays
X-rays
Gamma rays (Highest frequency, smallest wavelength and highest energy)
All EM waves travel at the same speed in a vacuum, about 3 x 10^8 m/s (c).
The questions about the frequencies used for broadcasting you could just look up on the internet. Actually, most of these questions could quite easily be found on the internet.
July 2nd, 2009 at 2:26 am
Google is your friend. He likes being used, so use him!
References :
July 2nd, 2009 at 3:15 am
I’m a big fan of this website, since it’s handy to get help with something from people who know more than you. Like if I need help with a certain part of calculus, or Biology. But posting an entire sheet of questions is just cheating on your homework.
Read the book, do your homework, and come to us if you don’t understand something. Otherwise, you don’t really learn a whole lot from this.
References :
July 2nd, 2009 at 3:26 am
I agree with the person above, you really shouldn’t just post all of your homework up here. But i shall give you some help.
The electromagnetic spectrum, in order increasing frequency, decreasing wavelength, and increasing energy is
Radio waves (Lowest frequency, largest wavelength and lowest energy)
Microwaves
Infrared radiation
Visible light (With red light having the with the lower frequency, larger wavelength and lower energy compared to blue light)
Ultraviolet rays
X-rays
Gamma rays (Highest frequency, smallest wavelength and highest energy)
All EM waves travel at the same speed in a vacuum, about 3 x 10^8 m/s (c).
The questions about the frequencies used for broadcasting you could just look up on the internet. Actually, most of these questions could quite easily be found on the internet.
References :
July 2nd, 2009 at 4:09 am
haha you had to do the light electromagnetic spectrum web quest in science class too huh?
References :
my science class at the moment