Category: Physics

Is a lever a simple machine? A lever is a simple machine made of a rigid beam and a fulcrum. The fulcrum is the point on which the beam pivots. When an effort is applied to one end of the lever, a load is applied at the other end of the lever. How many levers […]

What is the symbol for fog on a weather map? A fluffy cloud with the word mist underneath it obviously means that we will have mist. Clearly Fog is hard to draw, as the symbol for fog is simply the word with a frame around it. A fluffy cloud means that it will be cloudy. […]

What happens when an Ebonite rod is rubbed with wool? On rubbing an ebonite rod with wool, the electrons from the wool get transferred to the ebonite rod. The wool gets a deficiency of electrons and so it gets positively charged. On the other hand, the ebonite rod gets excess electrons and hence it gets […]

What are the layers of the lithosphere? Earth’s lithosphere includes the crust and the uppermost mantle, which constitutes the hard and rigid outer layer of the Earth. The lithosphere is subdivided into tectonic plates. The lithosphere is underlain by the asthenosphere which is the weaker, hotter, and deeper part of the upper mantle. Which crust […]

How many species are there on Earth in 2020? After compiling and analysing a database of DNA sequences from 5 million microbe species from 35,000 sites around the world, researchers concluded that there are a staggering 1 trillion species on Earth. How many species are we losing per hour? three species What is the rarest […]

What will happen if frequency is increased? So if frequency increases, the secondary voltage or emf increases. And secondary voltage decreases by the reduction of supply frequency. But with high frequency there is increase in transformer losses like core loss and conductor skin effect. Does frequency affect power? The problem is, frequency can be difficult […]

How does the atomic radius change as you go 3 Mark I from left to right in a period II down a group in the periodic table? (a) (i) Atomic radius decreases. (ii) Atomic radius increases. The period number of an element is equal to the number of electron shells in its atom. These two […]

How much weight do astronauts lose? Consequently, some muscles atrophy rapidly, and without regular exercise astronauts can lose up to 20% of their muscle mass in just 5 to 11 days. Do you feel hungry in space? Astronauts may have plenty of food to eat, but being in space can put a damper on their […]

What should I not tell my parents about NICU? 5 Things Never To Say To Parents Of Preemies (And What To Say Instead) “She’s so teeny!” 2. ” “Babies need to be exposed to germs.” 4. ” “Thank God that’s over!” “Congratulations.” 2. ” “I’m here whenever you want to talk.” How much does a […]

Is Cheating good in exams? This will result in a much higher average performance than an in-person exam would, putting anyone who does not cheat at a disadvantage as any grading on a curve would hurt him or her. Cheating, being a form of dishonesty, is wrong even when rampant. How can I cheat online […]