Category: Physics

What happens when an atom gains or loses an electron quizlet? When an atom loses an electron, it loses a negative charge and becomes a positive ion. When an atom gains an electron it gains a negative charge and becomes a negative ion. What kind of bond is formed when two atoms share an electron? […]

What is special about summer solstice? The day that the Earth’s North Pole is tilted closest to the sun is called the summer solstice. This is the longest day (most daylight hours) of the year for people living in the northern hemisphere. It is also the day that the Sun reaches its highest point in […]

What is the difference between synoptic and prognostic charts? 2. How are prognostic charts different from synoptic weather maps? Prognostic charts are computer generated forecast showing the expected pressure pattern at a specific future time. Synoptic weather maps describe the state of the atmosphere over a large area at a given moment. What is good […]

What causes resistance in a wire? The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance. The resistance of a long wire is greater than the resistance of a short wire because electrons collide with more ions as they pass through. […]

Why did US not join League of Nations? The League of Nations was established at the end of World War I as an international peacekeeping organization. Although US President Woodrow Wilson was an enthusiastic proponent of the League, the United States did not officially join the League of Nations due to opposition from isolationists in […]

What are 5 examples of physical activity? Some examples of physical activity are: Going for a walk, bike, or run (join our indoor walking program). Doing household chores. Taking the stairs instead of the elevator. Playing at the park. Raking leaves or shovelling snow. What are the examples of moderate physical activity? Examples of moderate […]

How do I combine two plots in R? Combining Plots R makes it easy to combine multiple plots into one overall graph, using either the. With the par( ) function, you can include the option mfrow=c(nrows, ncols) to create a matrix of nrows x ncols plots that are filled in by row. The layout( ) […]

What is a critical point of a substance? Critical point, in physics, the set of conditions under which a liquid and its vapour become identical (see phase diagram). For each substance, the conditions defining the critical point are the critical temperature, the critical pressure, and the critical density. What happens to water at its critical […]

Are rocks stronger under tension or compression? Rock is strong under compression but relatively weak under tension and shear. This is a result of the microscopic structure of rock: it contains microscopic cracks which are forced open and enlarged by tension and shear but which are forced closed by compression. What increases rock strength? The […]

What is the function of science and technology in development? The role of S is to lead national development and to support socio-economic needs. The priority areas that have been identified are: – Development of electronics, information, and communication technologies. – Development of selected high technologies to lead the industrial structure adjustment. Is there a […]