Electromagnetic Spectrum

• Ultraviolet radiation has shorter wavelengths than visible light, but longer wavelengths than X-rays.
• Amplitude is the distance from the midpoint to the highest ( or lowest ) point of the wave.
• Wave is a disturbance in space.
• Crest is the highest point in a wave.
• Frequency refers to the number of waves produced in one second.
• Trough is the lowest point in a wave.
• Wavelength is the distance between two successive identical parts of a wave.
• Range is the extent or the limits between which variation is possible.
• The terms light, electromagnetic waves and radiation all refer to the same physical phenomenon: electromagnetic energy.
• This energy can be described by frequency, wavelength or energy.
• The higher the frequency, the more energy produced, the shorter the wavelength.
• The lower the frequency, the less energy, the longer the wavelength.
• Reflection is where it bounces.
• In reflection, when it hits in a straight direction, the bounce is also straight.
• Absorption is when there is a vibration.
• In absorption, the temperature will rise and it will emit heat or thermal energy.
• Diffraction - There is the bending and the spreading of waves around an obstacle.
• A tool that can be used in diffraction is the spectrometer.
• Scatter is where it bounces but in different directions.