Math
What is the velocity of a wave with a frequency of 5hz and a wavelength of 10 m?
50 m/s.
What is meant by an electromagnetic wave vs a mechanical wave?
An electromagnetic wave is a wave in the electromagnetic field, instead of a physical thing whereas a mechanical wave is in something tangible.
What physical property does the loudness we hear a soundwave correspond to?
Amplitude. The height of the wave.
What is the amplitude of a wave?
The height of a wave, the distance from the equilibrium line to its crest or trough.
Constructive interference is the phenomenon where two or more waves combine to form a wave with a greater amplitude.
What is the frequency of a wave with a velocity of 100 m/s and a wavelength of 10 m?
10 hz
In what direction, do the particles move relative to the wave in a light wave?
At right angles, or normal to the wave motion, definition of a transverse wave.
In what direction, do the particles move relative to the wave in a sound wave?
On the same axis or in the same direction. Definition of a longitudinal wave.
What is the wavelength of a wave?
The distance between any two identical points
What is destructive interference?
Destructive interference is when two waves meet and cancel each other out, either partially or completely.
What is the wavelength of a wave which frequency is 5 hz and the velocity is 5 m/s?
1 m
What property of the electromagnetic wave corresponds with how much energy it has?
Its frequency.
What property of the sound wave corresponds with how much energy it has?
Its amplitude.
What is the period of a wave?
The time it takes for a wave to repeat itself.
What law governs refraction?
Snell's Law.
What is the amplitude of the resultant wave of two waves which are perfectly in phase which have amplitudes 3 and 2 respectively?
5.
What does the brain interpret the wavelength of a light wave as?
Color.
What does the brain interpret the wavelength of a sound wave as?
Pitch, the tone of a note.
What is the frequency of a wave?
The amount of times a wave repeats in some amount of time, normally 1 second.
What is the law of reflection?
For a flat mirror, the angle of incidence (the angle a ray comes in at) is equal to the angle of reflection.
What is the amplitude of the resultant wave of two waves which are perfectly out of phase which have amplitudes 3 and 2 respectively?
1 or -1
Rank the colors of the visible light spectrum in order of increasing frequency, (decreasing wavelength)
Red, Orange, Yellow, Green, Blue, Indigo, Violet.
Why does it matter if an instrument is "in-tune"?
Because the sound waves interfere with each other creating an envelope curve. (Wawa noise)
What is the definition of a hert?
A Hert or Hertz is a unit of frequency defined by the number of times something repeats in 1 second.
Diffraction is a process where small boundaries act like wave sources. Bending the wave.