Category: Physics

Does oxygen form a positive or negative ion? Negative ions are called anions . Oxygen is in group 6. An oxygen atom has six electrons in its outer shell. The atom is more stable if it has a full outer shell….Forming negative ions. Atom name Ion name Sulfur Sulfide Which form of oxygen is the […]

What are the similarities and differences between kinetic and potential energy? KE is the energy possessed by an object by virtue of it being in motion. PE is the energy possessed by an object by virtue of its position. It can be transferred from one object to another and this happens during collisions. Potential Energy, […]

How many degrees is a 6% grade? Slopes vs. gradients vs. % grades Slope Angle (degrees) Gradient Grade (%) 5 1 8.75 5.74 1 10 6 1 10.5 What is a 360 angle called? A 180° angle is called a straight angle. Angles such as 270 degrees which are more than 180 but less than […]

When would a sailboat be the give-way vessel? Paths That Cross: The power-driven vessel is the give-way vessel. The sailing vessel is the stand-on vessel. Overtaking: The vessel that is overtaking another vessel is the give-way vessel, regardless of whether it is a sailing vessel or a power-driven vessel. The vessel being overtaken is always […]

How do I find the mean of a frequency table? To find the mean add all the ages together and divide by the total number of children. How do you find the mean median and mode on a histogram? Mode = peak of dataset so, whichever bar of histogram is tallest, the mid point of […]

What is the best earthquake warning app? MyShake. The MyShake app was developed by the UC Berkeley Seismology Lab (California). In addition to providing alerts for earthquakes, safety tips, and maps, the app uses your phone to help detect earthquakes. Can iPhone detect earthquake? Your iPhone, iPad and most newer mobile phones can work as […]

How do you figure out how much a trip will cost? What is the cost of a road trip? determine the number of miles you will travel (google maps provides a good ballpark figure) divide the number of miles by your car’s mpg (the number of miles you travel per gallon of gas) multiply that […]

Should bread be baked in the middle of the oven? Bottom rack: The oven’s heating element is on the bottom, so if you want to brown the underside of a dish (like pizza, bread, or a pie), move the rack to its lowest position, because it’ll be closest to the source of heat. Middle rack: […]

What type of reaction happens when bubbles form? Explanation: When substances are put in the same container like, CaCO3 and HCl . A reaction occurs and bubbles escape the container (effervescence). These bubbles are actually gas fumes, and this shows that a new gaseous product is formed. What are main ideas and details? The main […]

What is the actual weight of molecule of water? Therefore, 18g of mass of water is occupied by 6.022×1023 number of molecules. Therefore, we can calculate the mass of one molecule of water by dividing the mass of one mole of water and Avogadro number. The actual weight of a molecule of water is calculated […]