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 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 […]

How do you round decimals to the nearest tenth? To round a number to the nearest tenth , look at the next place value to the right (the hundredths). If it’s 4 or less, just remove all the digits to the right. If it’s 5 or greater, add 1 to the digit in the tenths […]

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 […]

Can stone be made? Engineered stone is the latest development of artificial stone. A mix of marble or quartz powder, resin, and pigment is cast using vacuum oscillation to form blocks. Slabs are then produced by cutting, grinding, and polishing. Can humans melt rock? Yes they can and they do. Melting of rocks depends upon […]

Why is skim milk bad for you? Skim can leave you feeling unsatisfied, which leads many people to fill up on less-healthy “non-fat” foods. This is because saturated fats like those found in whole milk trigger the release of the hormone cholecystokinin, which makes you feel full. 5. Skim milk has been linked with “transient” […]

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 […]