electromagnetic waves
Electromagnetic waves are light waves at different frequencies
Formula for spring force
F=kx
A pendulum is a...
simple harmonic oscillator
What is the speed of equation?
speed of wave= frequency * wavelength
The speed of the wave is 50m and has a wavelength pf 1.9m, what is the frequency of the wave?
F=26.3 Hz
What are the different types of electromagnetic waves?
Reflection, refraction, diffraction
If f=kx, what does x stand for ?
X stands for the extension of the spring
What is an oscillator?
A device that produces periodic motion
True of False. Mechanical waves travel in a vaccum/space.
False
What is the speed of the wave if the frequency is 40Hz and the wavelength is 12m?
Speed of wave= 480m/s
When does diffraction occur ?
Occurs when light passes from one substance to another and bends
what does the spring constant tell you?
the spring constant tell you how stiff your spring is
As a pendulum swings, what accelerates it back to its equilibrium position?
Gravity
The lower the frequency the ______ the wavelength is.
Higher
The speed of a wave is 50m/s. If the wavelength is 4m, What is the frequency of the wave?
F=12.5 Hz
What is the Doppler effect?
The Doppler effect is whenever there is an observed change in frequency when a source or observer is moving
In f=kx, What does K represent?
spring constant
What is equilibrium?
The midpoint of the oscillation of a simple harmonic motion
The orgin is the center of _________
Equilibrium
A wave has a frequency of 500Hz and the speed of the wave is 200m/s, What is the wavelength?
Wavelength= 0.4m
What is refraction ?
When light passes from one substance to another and bends
What does hookes law state ?
It states that the restoring force required to compress or stretch a spring is proportional to the distance the spring is deformed
As the spring compresses or stretches, the force from the spring accelerates the object back to its ___________ ________
equilibrium position
The speed of a mechanical wave is slowest in a ___.
Gas
A wave travels at the speed of 2,000,500m/s with a frequency of 42,780,000Hz, What is the wavelength of this wave?
wavelength= 0.046M