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                            INTERNET    Reach of Internet It is very difficult to estimate the area that the internet cover. Also, every second million people remain connected to it with any problem or issue. Apart from that, just like all the things the internet also has some good and bad effect on the life of people. So the first thing which we have to do is learn about the good and bad effect of the internet. Good effects of the internet mean all those things that the internet make possible. Also, these things make our life easier and safer. Bad effects of the internet mean all those things that we can no longer do because of the internet. Also, these things cause trouble for oneself and others too. You can access in any corner of the world. Also, it is very easy to use and manage. In today’s world, we cannot imagine our life without it. Uses Of Internet From the time it first came into existence until no...

GK Questions for Class 8 Gk questions for class 8: Mathematics Maths plays an important role when it comes to understanding subjects like physics, social science, chemistry, etc. Quiz questions for class 8 with answers show the way to build mental discipline and encourage mental rigor and logical reasoning.  1. Mention any four rational numbers which are less than 5? -1, 1, 2 and 3   2. What is the multiplicative inverse of -3/11 and -3? -3/11 = -11/3 and -1/3   3. Name the additive and multiplicative identities of rational numbers. 1 and 0   4. What is the associative property applicable to? Addition and multiplication   5. What is the multiplicative identity of rational numbers? 1   6.  Which is the smallest perfect number? 6   7. What is QAD? Quod Erat Demonstrandum   8. What is the sum of the first four odd natural numbers? 16   9. What are the two classifications of the surface area of a hemisphere? CSA(Curved Surface...

                   Force and Pressure  FORCE👉 Force is the effect caused by the interaction of two objects which tries to change the state of the object. The pressure is the force acting on an object in the perpendicular direction to the surface of the object which results in the spreading of force over a certain area. The unit of the force is newton. Contact force-(1) Muscular force is  a type of contact force ( any force which act after contact )  . (2) The frictional force is a contact force that acts in the opposite direction to the motion of an object. This force can cause objects in motion to come to rest, as they act in the opposite direction to its motion. PRESSURE-Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.  The unit of pressure is Pascal. FormulaPA=N/m²