Category: Physics

What did Pythagoras believe about the earth? An astronomical system positing that the Earth, Moon, Sun and planets revolve around an unseen “Central Fire” was developed in the 5th century BC and has been attributed to the Pythagorean philosopher Philolaus. Did Pythagoras go crazy? One of Pythagoras’ strangest obsessions with food was his relationship to […]

Why uniform circular motion is not SHM? Circular motion is not a form of simple harmonic motion. SHM occurs when a particle is subjected to a force that is anti-parallel to the particle’s motion. Thus, they are very different in nature. What is epoch in SHM? An epoch, in physics, refers to the displacement acquired […]

Is it good to Flex? It can also be a way to build strength. Muscle flexing is more accurately known as muscle contraction, because when you flex your muscles, you’re creating tension that’s temporarily making the muscle fibers smaller or contracted. This tension is one example of how flexing your muscles can help make them […]

Who helped Tesla? Elon Musk How did the Tesla coil impact society? Circuitry using the Tesla coil was part of the first generation of transmitters to carry wireless telegraphy. Tesla used his brainchild to research such diverse areas as lighting, X-rays and electric power transmission. Customized Tesla coils are now frequently used to ignite powerful […]

Can you boil water with a tealight candle? This calculation suggests that a tea light should be able to boil 4 or 5 pots of water. However, not all the energy will go nto the hot water and you will have to heat up the pot as well as the water. So I would guess […]

Can you touch your eardrum? And if you press on those, it sends shock waves into the inner ear, and the inner ear is responsible for hearing and balance. So if you tap on the eardrum, you’re sending shock waves into the inner ear and you can cause problems with your hearing and balance. Is […]

What is the difference between emission and absorption spectrum? The main difference between emission and absorption spectra is that an emission spectrum has different coloured lines in the spectrum, whereas an absorption spectrum has dark-coloured lines in the spectrum. What is basic emission? Definition of Emission The basic electronic emission occurs when heat, sunlight, electron […]

What is the most heat conductive liquid? Water Why is heat transfer important for thermal fluid design? The key point behind heat transfer fluid technology is the ability to generate high temperatures at low system pressures. Heat transfer fluid technology offers safety, low maintenance, and extending operating lifetimes when compared to traditional technologies such as […]

Which type of reaction releases energy quizlet? Chemical reactions that release energy, usually in the form of heat, are called exothermic reactions. Chemical reactions that absorb energy, usually in the form of heat, are called endothermic reactions. Many types of reactions can be endothermic or exothermic. How is energy released in a chemical reaction quizlet? […]

Is acceleration and velocity the same? Velocity is the rate of change of position with respect to time, whereas acceleration is the rate of change of velocity. Both are vector quantities (and so also have a specified direction), but the units of velocity are meters per second while the units of acceleration are meters per […]