Light
What electromagnetic Wave can Humans see ?
Light
True or False
Increasing the amplitude of a sound wave makes it louder because it increases the energy transferred by the wave.
True
The number of wavelengths that pass a given point per second
Frequency
A wave that requires a medium to travel through is called a ________________ wave. This includes both transverse and longitudinal waves.
Mechanical
Which type of signal is made up of a continuous uninterrupted wave that is streaming information or data?
Analog Signals
What colors does a black shirt reflect ?
None
The high point of a transverse wave
Crest
How fast a wave travels is known as ________.
wave speed
The unit to measure the intensity of a sound
Decibel
What type of signal maintains quality over a long distance without breaking down?
Digital Signal
Which of the following colors has the highest frequency?
red orange indigo violet
Violet
The matter that mechanical waves travel through is known as ____________.
Medium
The measure of how high or low a wave is
Amplitude
What type of signal is more affected by noise?
Analog Signal
In diffraction, the bending of the wave depends on the size of the obstacle it must go through.
True or False
True
When a sound becomes softer/quieter ___________________.
a. the amplitude of the wave increases
b. the frequency of the wave increases
c. the amplitude of the wave decreases
d. he frequency of the wave decreases
c. the amplitude of the wave decreases
The higher the frequency, the ______________ the wavelength.
a. longer
b. shorter
c. higher
b. shorter
The low point of a transverse wave
Trough
What is the language that is used by digital signals and only has two components? (1's and 0's)
Binary Code
Light travels through some materials more easily than others. When light passes through matter we call that ____________________________.
absorption
reflection
transmission
transmission
Why does increasing the amplitude of a sound wave make it louder?
a. It lengthens the wavelength.
b. It increases the wave's frequency.
c. It increases the energy transferred by the wave.
d. It decreases the wave's speed.
c. It increases the energy transferred by the wave.
In a longitudinal wave, ____________________ or ____________________ represent the maximum displacement from the rest position.
Compressions or rarefactions
In a sound wave this describes how high or how low a sound is
Pitch
What type of signal do the following items represent?
VHS tape
Walkie- Talkies
Sliding Scale
Vinyl Record
Analog