Category: Physics

What is the efficiency of actual machine? The efficiency of a actual machine is equal to the ratio of its output ( resistance multiplied by the distance it is moved ) to it’s input ( effort multiplied by the distance through which it is exerted ); it is also equal to the ratio of the […]

How far away from a wall should a ladder be? Use the 4-to-1 rule: Make sure the ladder is 1 foot away from the wall for every 4 feet that the ladder rises. For example, if the ladder touches the wall 16 feet above the ground, the feet/base of the ladder should be 4 feet […]

What type of energy is in a log? chemical energy What form of energy is possessed by charcoal before it is burned? Potential energy Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Chemical energy is converted to thermal energy […]

What are three types of sedimentary rock? There are three different types of sedimentary rocks: clastic, organic (biological), and chemical. Clastic sedimentary rocks, like sandstone, form from clasts, or pieces of other rock. Are sedimentary rocks soft or hard? Sedimentary rocks are economically important in that they can easily be used as construction material because […]

What is a circuit with only one path? A “series” circuit has only one path for the electricity to follow. A “parallel” circuit has two or more paths for the electricity. Does supply of electricity have two way path? That’s because the electricity is now flowing through two paths, instead of one. Think of it […]

How do I know if my room is good acoustics? Walk around the room while listening to the song, and notice how the volume and frequencies differ in various places in the room. This may be subtle or it may be quite noticeable. This will give you a general impression of the acoustics of the […]

What is the classification of a cat? Mammal What is the scientific name of cats? Felis catus What is scientific name of human? Homo sapiens Who was the first person to have a cat? Most early evidence of cat domestication comes from ancient Egypt. Some experts believe that the Egyptians may have tamed and bred […]

How do I know if my tire gauge is accurate? 1) You can check the air pressure in a tire with the gauge in question and then check the same tire with another gauge. If there is a significant difference in the readings (4 or more psi) between the two gauges one or both gauges […]

What is eV Energy? Alternative Titles: eV, electronvolt. Electron volt, unit of energy commonly used in atomic and nuclear physics, equal to the energy gained by an electron (a charged particle carrying unit electronic charge) when the electrical potential at the electron increases by one volt. How does a photon carry energy? Light indeed carries […]

What is the energy that is in motion called? Kinetic energy What are some words for powerful? powerful heavy, heavy-duty, important, influential, mighty, potent, puissant, significant, Which is the strongest word? In reverse order, here are my Top 10 Powerful Words: #10. STRUGGLE. Struggle is a precious gift. #9. ADVENTURE. This is a topic which […]