WAVES
Mechanical Waves
Electromagnetic Waves
Definition
Definition
Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields. (The Economic Waves)
A wave that needs matter or medium to transfer energy.
Our Own Definition: Electronicmagnetic waves are waves that don't need a medium, creating a vibration between an electric and magnetic field.
A mechanical wave is a wave that is an oscillation of matter and is responsible for the transfer of energy through a medium. (Byju's)
Examples
Examples:
Microwaves
Sound waves
Radio
infrared waves
X-rays
Ocean waves
gamma rays
Ripples in water
Earthquakes
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Sound waves are waves that travel through the medium "sound."
Ocean waves are waves that travel through the medium "water."
Ripples in water are waves that travel through the medium "water."
A graph of gama rays
Earthquakes are waves that travel through the medium "earth."
Sun is a kind of infared waves
Compressional Waves
Transverse Waves
It oscillate along a paths vertically at right angels to another direction.
Definition:
a wave in which the medium vibrates at right angles to the direction of its propagation.(Oxford Languages)
Example:
Transverse waves is wave that acts along a paths vertically at right angels to another direction.
Waves in water
Radio waves
Light waves
Definition
Examples
A mechanical wave where the matter moves forward and backward
A compressional wave is where the particle motions in the same direction the wave is motioning.
Sound waves
P-waves
Ultrasound waves
Different vibrations create higher or lower notes
Different sizes and shapes determines the kind of sound we hear
Vibrations travel through the air are called sound waves
Vibrations are slower for low-pitched sounds and faster for high-pitched sounds
Echos happen when sound wave rebounds itself
Concave Lens - the light goes through straightly and reaches the focal point (where rays of light intersects)
Parts of a Wave
Crest - the highest point of a wave
Trough - the lowest point of a wave
Wavelength - the distance between two waves
Amplitude - the distance from the middle line to the crest or the trough
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Concave Lens - the light goes straightly through straightly and spreads out