or 32 ft/s², irrespective of its mass. Scientists refer to this as the acceleration due to gravity. The concept of G's, or "G-forces," refers to multiples of the acceleration due to gravity and the concept applies to acceleration in any direction, not just toward the Earth. Scientist...
Thespecific gravitystands for a dimensionless unit that defines the ratio of density of a substance to the density of water. The density of water is 1000 kg/cubic meters at 4 Celsius. In physics, the weight of the substance differs from its mass. The weight is the gravitational force that ...
Much of today’s science of physics is based on Newton’s discovery of the three laws of motion and his theory of gravity ( 地球引力). Newton said, “If I saw further than other men, it was because I stood on the shoulders of giants.” One was the great Italian...
Review how to calculate the mass of a liquid from its volume and density. Density is mass per unit volume: density = mass / volume You can rewrite the equation to solve for mass: mass = volume x density Densityof liquids usually is expressed in units of g/ml. If you know the density...
Concepts that we now take for granted, like gravity, planetary orbits and black holes, might still be undiscovered. Check out the links on the next page for lots more information about the human brain, intelligence and genius. "Genius Grants" The John D. and Catherine T. MacArthur Foundation...
Magnetic and electrical fields are related, and magnetism, along with gravity and strong and weak atomic forces, is one of the four fundamental forces in the universe. But none of those facts answers the most basic question: What exactly makes a magnet stick to certain metals? Or why don't...
That's why we need to look at Einstein's later theory, theGeneral Theory of Relativity, which describes how gravity affects the shape of space and flow of time. Imagine a stretched-out sheet. If you place a bowling ball in the middle of the sheet, the sheet will warp as the weight ...
Allende criticized Jessup's naive understanding of unified field theory, which Allende claimed to have been taught byAlbert Einsteinhimself. Aunified field theory, which has never been proven (by Einstein or anyone else), attempts to merge the forces of gravity andelectromagnetisminto one fundamental...
Mass(abbreviatedmin physics equations) is a fundamental quantity in physics that denotes the existence of matter. One way to consider matter is that is possesses inertia; another is that gravity acts to accelerate masses, but not massless photons, or "packets" of light (it does a tiny bit, ...
Calculating Density in Pounds per Gallon Since specific gravity is a ratio of the density of a solid or liquid to the density of water, all you have to do to find the density, given the specific gravity, is to multiply the specific gravity by the density of water. If you're looking fo...