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Science Term 2, image, Formula - Coggle Diagram
Science Term 2
Reflection, transmission, absorbtion
Reflection: Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface.
Transmission: Transmission is when light or any other electromagnetic wave moves through an object. An example is when sunlight goes through your window.
Absorbtion: Absorbtion happens when light or any other electromagnetic wave hits a surface and change the state of the energy. One example are black objects, they appear black to our eyes because they absorb almost all light. This is also why black objects get hot quicker, as they absorb more electromagnetic waves and converts it into heat energy.
Waves
In physics, mathematics, engineering, and related fields, a wave is a propagating dynamic disturbance of one or more quantities. Periodic waves oscillate repeatedly about an equilibrium value at some frequency
electromagnetical
Electromagnetic waves, unlike mechanical waves, can travel through a vacuum (space without a medium). Examples include radio waves, microwaves, infrared waves, visible light, ultraviolet waves, X-rays, and gamma rays.
Mechenical
Mechenical waves there are 2 type of waves which is transverse and longitudinal
In longitudinal waves, particles of the medium move parallel to the direction of the wave, while in transverse waves, particles move perpendicular to the direction of the wave.
Electromagnetic spectrum
Light
Light or visible light is electromagnetic radiation that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres, corresponding to frequencies of 750–420 terahertz, between the infrared and the ultraviolet.
Waves can be characterized by several parameters:
Amplitude: The height or intensity of a wave, indicating the energy it carries.
Frequency: The number of wave cycles (complete oscillations) per unit of time, measured in Hertz (Hz).
Wavelength: The distance between two successive points in a wave cycle, usually measured from peak to peak or trough to trough.
Echo
An echo is a reflection of sound that arrives at the listener after bouncing off a surface. It occurs when sound waves travel through the air, hit a surface, and then reflect back to the listener. The perception of an echo depends on the delay between the original sound and its reflection.
Distance= 2 Speed of Sound×Round-Trip Time
Vibration
what is a vibration?
Frequency: The number of oscillations per unit of time. It is measured in Hertz (Hz), where 1 Hz equals one oscillation per second. Higher frequencies indicate a faster oscillation.
Amplitude: The maximum displacement of a vibrating object from its equilibrium position. It represents the intensity or strength of the vibration. Larger amplitudes result in more noticeable vibrations.
Wavelength: The distance between two successive points in a periodic wave that are in phase. In the context of vibrations, it is often associated with the distance between successive peaks or troughs in a waveform.
Vibration refers to the oscillating or back-and-forth motion of an object or a medium. This motion typically occurs around a reference point or equilibrium position. The oscillations can be periodic or random and can occur in various forms, such as mechanical vibrations, electromagnetic vibrations, or acoustic vibrations.
Formula
