Category: Physics

Is it true that nonmetals increase in reactivity when moving from left to right? The reactivity of nonmetals increases when moving from left to right in the periodic table. They have a high attraction for electrons and tend to gain electrons. The most reactive nonmetal element is fluorine. What does xenon mean in Greek? Derived […]

What is the speed of light in a medium of refractive index n? The refractive index can be seen as the factor by which the speed and the wavelength of the radiation are reduced with respect to their vacuum values: the speed of light in a medium is v = c/n, and similarly the wavelength […]

What are the similarities between resultant and Equilibrant forces? Resultant is a single force that can replace the effect of a number of forces. “Equilibrant” is a force that is exactly opposite to a resultant. Equilibrant and resultant have equal magnitudes but opposite directions. What is the space diagram? A drawing of a structure that […]

What are the three steps of seafloor spreading? Terms in this set (7) Magma comes out of the rift valley. Magma cools to rock and hardens. Rock is pushed away as new rock is formed at MOR. Oceanic crust and continental crust meet at the trench. Oceanic crust bends down under the continental crust. Gravity […]

Who are some of the major developmental psychologists? Influential developmental psychologists from the 20th century include Urie Bronfenbrenner, Erik Erikson, Sigmund Freud, Jean Piaget, Barbara Rogoff, Esther Thelen, and Lev Vygotsky. Which country is best for psychologists? Top 9 Places to Study Psychology Abroad Austria. Home to the father of psychoanalysis, Sigmund Freud, Austria has […]

What is clay and its uses? Clay is a type of fine-grained natural soil material containing clay minerals. Clay is used in many modern industrial processes, such as paper making, cement production, and chemical filtering. What is clay and where does it come from? Clay comes from the ground, usually in areas where streams or […]

At which stage is potential energy at its minimum? The potential energy due to gravity is at a minimum, since the mass is lifted the least amount above ground. In fact, if ground level is imagined at the bottom of the motion, the potential energy due to gravity is zero at this point of the […]

What did Aristotle say about the moon? For Aristotle the moon had been a perfect sphere, and that was how people still saw it in 1609. A perfect sphere, of course, is perfectly smooth. The pure moon was not of base earth. What did ancients think of the moon? Through persistent observation, Anaxagoras came to […]

How can I check myself for dehydration? Tests for dehydration Gently pinch the skin on your arm or stomach with two fingers so that it makes a “tent” shape. Let the skin go. Check to see if the skin springs back to its normal position in one to three seconds. If the skin is slow […]

Which shows the formula for converting from kelvins to degrees Celsius? C = K – 273.15. This formula to convert the temperature in Kelvin to degree Celsius is used for changing the given temperature from Kelvin to degree Celsius. What causes liquid in thermometer to drop? When heated, the molecules of the liquid in the […]