Category: Physics

Is electricity a motion? Electricity is Electron Motion So, when the laws of physics are applied to a single electron in motion, and then the sum is taken for the total contribution of all electrons, we can see how electricity can be used and converted to any type of energy. Why do diesel trains use […]

Is it better to boil water with the lid on or off? Yes putting a lid on a pot definitely makes it boil faster. Without a lid the evaporation of the water as it is heating cools it. Putting a lid on traps the moisture and slows the evaporation. It takes a lot of heat […]

How much will the power of 220v 40w electric bulb work at 110v? -Therefore, the Power consumed by this bulb across 110 V is 25 Watts. How much power can outlet handle? 1,500 watts How much power can a 120V outlet handle? 1800 watts How do you tell if an outlet is 15 or 20 […]

What are some real life examples of convection? 13 Examples Of Convection In Everyday Life Breeze. The formation of sea and land breeze form the classic examples of convection. Boiling Water. Convection comes into play while boiling water. Blood Circulation in Warm-Blooded Mammals. Air-Conditioner. Radiator. Refrigerator. Hot Air Popper. Hot Air Balloon. What is the […]

Are S or P waves faster? P waves travel fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P […]

What happens when octane reacts with oxygen? When octane (C8H18) is burned in air, it chemically reacts with oxygen gas (O2) to produce carbon dioxide (CO2) and water (H2O). Is Octane a gas or liquid? Octane is a straight chain alkane composed of 8 carbon atoms. It has a role as a xenobiotic. N-octane is […]

What are two types of convection? There are two types of convection: natural convection and forced convection. Natural convection is produced by density differences in a fluid due to temperature differences (e.g., as in “hot air rises”). Global atmospheric circulation and local weather phenomena (including wind) are due to convective heat transfer. What are 4 […]

How do you find the specific heat of a metal? Q = m*s*dT, where Q = heat, m = mass, s = specific heat, and dT is the change in temperature (T2 – T1). You can use this formula to calculate the specific heat. How do you calculate the enthalpy of solution for a dissolving […]

Where does 90 of energy go? Notice that at each level of the food chain, about 90% of the energy is lost in the form of heat. The total energy passed from one level to the next is only about one-tenth of the energy received from the previous organism. Why do food chains have 3 […]

What is the product of time? “We are a product of our time…” means we are influenced in our way of thinking, doing, our values change according to what we become accustomed to hearing and seeing. It’s due to our surroundings, new discoveries, technology, global warming, many more. How do you calculate velocity in business? […]