What is blue light and why is it bad? Continued exposure to blue light over time could damage retinal cells and cause vision problems such as age-related macular degeneration. It can also contribute to cataracts, eye cancer and growths on the clear covering over the white part of the eye. What does blue light symbolize? […]
What is the direction of the induced current in the circular loop of radius r?
What is the direction of the induced current in the circular loop of radius r? The direction of induced current in the circular loop will be clockwise or anti-clockwise depending upon the direction of current in the straight wire. The amount of induced current will be decided by the velocity with which the loop is […]
What is the line of symmetry on a graph?
What is special about summer solstice?
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 causes resistance in a wire?
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. […]
What is a Type D fire?
What is a Type D fire? Class D. Class D fires involve combustible metals, such as magnesium, titanium, and sodium. Extinguishers with a D rating are designed to extinguish fires involving combustible metals. Note: Common extinguishing agents may react with a combustible metal fire causing the severity of the fire to increase. What is a […]
Why did US not join League of Nations?
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 happens when an atom gains or loses an electron quizlet?
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 are 5 examples of physical activity?
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 […]
What is a critical point of a substance?
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 […]