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Term: Mechanical Waves
Definition: Waves that require a medium (solid, liquid, or gas) to travel, transferring energy through particle vibrations.
Term: Electromagnetic Waves
Definition: Waves that do not require a medium, consisting of oscillating electric and magnetic fields, such as light and radio waves.
Term: Amplitude
Definition: The maximum displacement from the rest position of a wave, indicating the energy carried.
Term: Wavelength
Definition: The distance between two consecutive corresponding points of a wave that are in phase, such as crest to crest.
Term: Frequency
Definition: The number of oscillations or cycles per unit time, determining the wave's pitch in sound.
Term: Refraction
Definition: The bending of a wave as it passes between different media, resulting from a change in speed.
Term: Reflection
Definition: The bouncing back of a wave when it encounters a boundary, changing its direction of travel.
Term: Diffraction
Definition: The spreading out of waves when they pass through a narrow opening or around obstacles.
Term: Echo
Definition: A reflected sound wave, perceived when the delay between the original sound and its reflection is sufficient.
Term: Electromagnetic Spectrum
Definition: The range of all types of electromagnetic radiation, differing by wavelength and frequency.