Electromagnetic radiation

The world is full of a multitude of colors that are used for both practical and aesthetic purposes. The colors that are seen when looking at different objects are due to the ability of the compounds in those objects to absorb specific wavelengths of light. In other words, the colors that are seen are the ones that are not absorbed. The wavelengths of light that are absorbed are determined by the electrons in a compound.1 As electrons move around, they can absorb energy and become excited. The…

Introduction: The ability of substances within a solution to absorb light is a wonderful phenomenon as it aids in processes such as determining the concentration of proteins. The way that a solution absorbs light is due to the photoelectric effect. The way the photoelectric effect works is that when light comes in contact with the sample, the photons of light will react with its electrons. As the light travels through the solution, "a photon of light may interact with an electron ... [where]…

Astronomy Practical – Carey Zimmer The aim of this experiment is to verify the inverse square law involving the light from the globe of an optics kit (The star) and a light meter placed some distance away. This is to be done by analysing the relationship between the source and the detector. Hypothesis: If the distance between a light source and a light meter increases, then the amount of Lux recorded on the light meter will decrease. Materials: • Light box kit • Power supply • Meter ruler •…

Slow, sleepy, Sunday mornings are the best with you. Your little toasty toes pitter across the floor while you linger closely at my heels babbling in a language only you could ever understand. With my coffee in hand we begin our day. Mundane tasks of laundry and dishes turns into your adventure of, "How much of a mess can I make?" You always seem to be right under my feet and I'm tripping. I'm tripping and falling. Falling -in love- with you. Dearest Daughter, I see myself in you. Today you…

In the first experiment we use the solubility of pigments to distinguish and observe them. Solubility refers to how much of a particular substance can dissolve in a particular solvent. In this experiment we use the solubility of the different colored pigments in the leaf to identify the different pigments. For example, when looking at a normal leaf, you only see that it is green because chlorophyll a and chlorophyll b are the most abundant in green leaves because those chlorophyll’s pigment is…

Experimenting with the electromagnetic spectrum, or the range of radiations, visible or invisible to humans, on earth, will help us predict the effects that different radiations will have on objects in outer space. This will help us learn more about matter in our universe and help us make educated guesses on why currently unexplainable things in the Solar System happen. In specification, using infrared, visible, and X-rays waves for experimentation on earth, will tell us discern the temperature…

transferred are called convection and conduction. Anything above -286 degrees Celsius gives off some amount of thermal energy, or infrared radiation. Half of the Sun’s energy is given off as infrared, and a good majority of the visible light gets absorbed, and then turned back into infrared radiation. Incandescent bulbs even give off 90% of their energy as IR radiation, and this is also true for toasters and other kitchen appliances. TV remotes use IR waves to send an invisible signal to the…

The Sun and Our Star - Have you ever questioned as to how and why we are able to dry our clothes in the summer, and to be able to heat food and treat our water? - This all thanks to the sun - Without the sun, we all would be dead, it gives us light, heat and energy to heat up the Earth - Most of the energy stays inside of the sun because of its gravitational pull, and all small amounts leave the surface in the form of radiant energy Type of star: Age: Yellow dwarf 4.5 Billion Years…

If you think about electromagnetic waves all behaving like light waves, which they do, you would know that they can travel through space and do so at very high speeds. This means that it can, “Travel through space (which is a vacuum), traveling at a speed that is the same for all forms of electromagnetic energy and is equal to the speed of light, 3 x 108 m/sec (or 186,000 miles per second)” (“The Sun & its Energy…

Light is a rush of vibrating electric and attractive fields and is a part of the electromagnetic range. Electromagnetic waves go through space at the pace of light (299,792 km/sec). The energy of the radiation relies on upon its wavelength and recurrence. A wavelength is the separation between the highest points of the waves. The recurrence is the quantity of waves that go by every second. The…