Electromagnets
What 2 Forces Combine to generate Electromagnetism?
Electricity and Magnetism
the wavelength
What is the formula used to find the speed of waves?
Speed = Wavelength x Frequency
Which Physics Pioneer discovered the color theory (theory of light)?
Sir Isaac Newton
Give 2 examples where you might encounter an electromagnet
Electric motors, speakers, power door locks, Bullet trains, X-ray machines, etc.
What is the lowest point of a wave called?
the trough
What are some examples of an electromagnetic wave?
Light and UV rays
What colors of light are reflected when looking at an object?
What is a Solenoid?
A coil of wire with a current running through it
How does Frequency impact waves?
The higher the frequency, the more powerful the wave is... the shorter the wavelength too
What are some examples of a Mechanical wave?
Sound or Ocean waves
What colors of light are absorbed when light hits a blue object?
All the colors except blue
What can you do to strengthen a solenoid?
Wrap the wire around the nail tighter/more
What are the 2 types of waves?
mechanical and Electromagnetic
What is the frequency of a wave that has a wavelength of 3 m and a speed of 18 m/s?
6 Hz
Is light a wave, particle, or both?
Both
Who Discovered Electromagnetism?
Hans Christian Orsted
What are the 5 parts of a wave?
crest, trough, wavelength, mean line, and amplitude...(frequency too)
c=3.0 x 10^8 m/s or 300,000,000 m/s
Describe how colors of light mix differently than colors or paint.
Unlike mixing paint, which will give you a darker color, when you mix all the colors of light, you get white light