What provides electrons for the light reactions? What is the unit of electrical potential energy? What can absorb electromagnetic radiation? How does a light emitting diode work? How is heat energy used to generate electricity in a modern power plant?
What does ionizing radiation do to meat? What carries the energy in electromagnetic radiation? Which type of electromagnetic radiation cannot be focused? What are the uses of electromagnetic radiation? What does ionizing radiation remove from atoms? What form of electromagnetic radiation do X-rays use?
In an electrical and electronic circuit, the primary function of a resistor is to “resist” the flow of electrons, i.e.,electric current. That is why it is called a “resistor”. Resistors are passive electrical elements, meaning they can’t provide energy to a circuit. Instead, they ab...
In phosphorescence, electrons absorb energy and jump to a higher energy state. When they return to their ground state, they emit light over a longer period due to a process called "intersystem crossing," where the electrons transition through different spin states. This process delays the ...
There are many different ways to produce photons, but all of them use the same mechanism inside an atom to do it. This mechanism involves the energizing of electrons orbiting each atom's nucleus. How Nuclear Radiation Works describes protons, neutrons and electrons in some detail. For example,...
Section 1 chapter 4. Electromagnetic Radiation (EMR) - a form of energy that travels in waves which includes radio waves, T.V. waves, microwaves, visible. Chapter 5 Light Electrons in atoms. Models of the atom Rutherford’s model of the atom did not show or explain chemical properties of...
These oxides have high thermal and electrical conductivity (although hematite can conduct more heat), can block radiation, and can dampen sound. Both materials also can be used to make plastics that are attracted to magnets. Hematite can be used as a pigment, adding a gray metallic sparkle to...
Solar panels arelined with photovoltaic (PV) cells. Each cell contains a silicon semiconductor, a material that conducts electricity. When this semiconductor absorbs sunlight, electrons get freed. These electrons start moving in an electric current, all moving in the same direction. ...
In the second step, 3-PGA is reduced, meaning it takes electrons from six NADPH molecules and produces two glyceraldehyde 3-phosphate (G3P) molecules. One of these G3P molecules leaves the Calvin cycle to do other things in the plant. The remaining G3P molecules go into the third step...
Yes, most metals are inherently opaque because their free electrons absorb and reflect light, preventing it from passing through. 4 How do opaque materials affect light? Opaque materials either absorb or reflect light, preventing it from passing through, which is why you cannot see through them....