Sound, Waves, and Magnets Flashcards
(22 cards)
What is the Doppler Effect?
A change in frequency of a wave (when the pitch changes depending on where you are)
Why do things connected to a magnet begin to fall as the magnet is lifted?
Because the magnetic field strength near the object decreases
When a transverse wave passes through a certain point how does the point move?
Up and down
Light: brightness :: sound:______
Loudness
When a wave passes through air and then water what happens to the wave when it enters the water?
It’s speed decreases
What is Interference?
When waves that have the same frequency combine and cancel each other out
What is refraction?
The bending of waves as they move from one medium to another with a different density
What part of an atom is most likely to be transferred as an object becomes electrically charged?
Electron
When to alike sides of a magnet are put together, what is the magnetic field like?
It circles around both and doesn’t connect
A longitudinal wave moves how?
It compresses and decompresses like a slinky
Ultraviolet light is more harm to human skin, why?
Because it has a higher frequency
The spreading of waves into the area behind an obstacle is known as ______
Diffusion
A single pulse in a uniform material medium transfers what?
Energy
Electromagnetic radiation travels as _______ ______
Transverse waves
Which electromagnetic waves has the longest wavelength?
Red light
Both sound waves and light waves do what?
Transfer energy
Sound will not travel through a ______?
Vacuum
The magnetic field around the Earth is called the
Magnetosphere
Which element is not magnetic
Copper
The largest magnet on Earth is what?
The Earth itself
Which rock is naturally magnetic?
Magnetite
The most common magnetic metals are:
Nickel, iron, cobalt
