physci
Texto del Guión Gráfico
- Good afternoon, Ms. Kim & to my classmates! The topic assigned to me is Electromagnetic Spectrum. First of all, what is an Electromagnetic Spectrum? It is the entire distribution of electromagnetic radiation according to frequency or wavelength.
- The electromagnetic spectrum comprises the span of all electromagnetic radiation and consists of many sub ranges, commonly referred to as portions, such as visible light or ultraviolet radiation.
- The various portions bear different names based on differences in behavior in the emission, transmission, and absorption of the corresponding waves and also based on their different practical applications.
- The entire electromagnetic spectrum, from the lowest to the highest frequency (longest to shortest wavelength), includes all radio waves (e.g., commercial radio and television, microwaves, radar), infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. In fact, we encounter electromagnetic spectrum in our day-to-day lives!
- You use radios when your dad asks you to turn it on so that he could listen to the news! You use the radio when you would like to listen to the news when there is a brownout! You use the microwave when you want to reheat your leftover pizza and pasta from last night! You use the microwave when you crave for microwave recipes/food! Night vision goggles pick up the infrared light emitted by our skin and objects with heat. Soldiers also use night vision goggles during wars, and this is what your character uses in video games like Call of Duty!
- Our eyes detect visible light. It helps us in our everyday lives! It an essential part of our lives. Life won't be the same without visible light! Meanwhile, ultraviolet radiation is emitted by the Sun and is the reason why the skin tans and burns. For example, when you're swimming at the beach or pool and you get a sunburn, or if your skin color becomes darker. A dentist uses X-Ray to examine your teeth so that she knows what to improve! Doctors use gamma-ray imaging to see inside your body.
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