Waves

• Vibrations - The repetitive motion, it causes wave motion.
• Waves is a vibration in space and time. It is a periodic disturbance that moves away from a source and carries energy with it.
• Transverse waves are waves where the oscillations are perpendicular to the direction of travel.
• Longitudinal waves are waves where the oscillations are parallel to the direction of travel.
• The speed of a transverse wave depends on its wavelength and frequency.
• Frequency = Number of complete cycles passing through a point in one second
• Amplitude = Maximum displacement from equilibrium position
• Period = Time taken for one cycle to be completed
• Crest = highest point of a wave
• Trough = lowest point of a wave
• Wavelength = refers to the distance between any successive identical parts of a wave.
• Mechanical Waves = Is not capable of transmitting energy through a vacuum.
• Electromagnetic Waves = is the type of wave that can transmit energy even without any material medium. It can also carry energy through space.
• Electromagnetic Spectrum = it shows the various types of electromagnetic waves. It is the complete spectrum of all forms of "light".
• Radio Wave = used by radio stations, TV channels, cell phones, and wireless internet connections.
• Infrared Radiation (IR) = used for heating objects, remote controls, night vision goggles, and thermal imaging cameras.
• Microwave = used for cooking food, satellite communication, radar systems, and microwave ovens.
• Ultraviolet Rays (UV) = causes sunburn and skin cancer. Used as sterilization equipment and tanning beds.
• Visible Light = is what we see with our eyes. The colors are red, orange, yellow, green, blue, indigo, and violet.
• Visible Light = is what we see with our eyes. The colors are red, orange, yellow, green, blue, indigo, and violet.
• Visible Light = used for light bulbs, lasers, fiber optics, and photography.
• X-rays = used for medical diagnosis and treatment. They have high penetrating power but low ionizing ability.
• Gamma rays = used for medical treatment and radiation therapy. Can cause serious damage to living tissue.