Category: Physics

What is convergence in ICT? Convergence refers to the fusing or coming together to gradually form something similar. “Convergence is a process by which telecommunications, information technology and the media, sectors that originally operated largely independent of one another, are growing together.” (Papadakis, 2007). Why Internet is the best example of technological convergence? Answer Expert […]

Can a glow stick kill you? Dibutyl phthalate has been reported to cause anaphylaxis and even death when ingested in large quantities, but the quantities in glow sticks are pretty minimal. There is no problem if the glow stick is swallowed whole, which seems like quite a feat. Is it safe to eat the stuff […]

How ATP is formed? ATP is also formed from the process of cellular respiration in the mitochondria of a cell. This can be through aerobic respiration, which requires oxygen, or anaerobic respiration, which does not. Aerobic respiration produces ATP (along with carbon dioxide and water) from glucose and oxygen. What is the role of ATP? […]

Can auroras be dangerous? The Northern Lights occur so high up in the atmosphere that they don’t pose any threat to people watching them from the ground. The aurora itself is not harmful to humans but the electrically charged particles produced could have some potentially negative effects to infrastructure and technology. How often do auroras […]

What is water called in science? Dihydrogen Monoxide What does the H in H2O stand for? H2O is a molecule made of H for hydrogen and O for oxygen. There are 12 of these molecules. The smaller number is the number of atoms of the element to the left of it. No number means one […]

How do I stop hand spasms? These include: stopping any activity which is causing the hands to cramp. stretching muscles. massaging or rubbing the muscles. applying heat or cold. taking certain vitamins and supplements may be helpful, although this will depend on the cause and a person’s medical history. increasing fluid intake. What do diabetic […]

Who said that atom is neutral? J.J Thomson Which statement is true of atoms? The statement that is TRUE about atoms is “electrons determine the size of the atom.” The electrons surround the nucleus of an atom and they determine the space in which an atom occupies. What is the meaning of 1 amu? atomic […]

What is an example of ordinal measurement? Examples of ordinal variables include: socio economic status (“low income”,”middle income”,”high income”), education level (“high school”,”BS”,”MS”,”PhD”), income level (“less than 50K”, “50K-100K”, “over 100K”), satisfaction rating (“extremely dislike”, “dislike”, “neutral”, “like”, “extremely like”). Is ordinal qualitative or quantitative? Data at the ordinal level of measurement are quantitative or […]

Why is resistance different in series and parallel? The parallel circuit has very different characteristics than a series circuit. For one, the total resistance of a Parallel Circuit is NOT equal to the sum of the resistors (like in a series circuit). The total resistance in a parallel circuit is always less than any of […]

How do you do momentum in math? Momentum (P) is equal to mass (M) times velocity (v). But there are other ways to think about momentum! Force (F) is equal to the change in momentum (ΔP) over the change in time (Δt). And the change in momentum (ΔP) is also equal to the impulse (J). […]