Students and Teachers Forum
As atmospheric pressure pushes down on the surface of the mercury in the cistern, that mercury in turn pushes up with an equal pressure on the mercury in the glass .....
You may have learnt that A transformer is used either to increase or decrease (change) voltage and current in an electrical circuit. In a transformer, the number of turns in primary and secondary coils is different. This cause the change of .....
Decomposition of silver chloride: Place a small quantity of silver chloride (AgCl) taken in a watch glass under sunlight for some time. The crystals slowly acquire a grey colour. On analysis, it is found that the sunlight has caused decomposition .....
They are used for determination of force of attration between two bodies. They are used to find out gravity when object is placed at the surface of earth or .....
Length is a physical measurement of distance that is fundamentally measured in the SI unit of a meter. Length is how long something .....
Mass is the amount of matter or substance that makes up an object. It is measured in units called kilograms, which can be abbreviated kg. Mass is the constant quantity ie it is same .....
Biomass is plant or animal material used for energy production. It can be grown energy crops, wood or forest residues, waste from food crops, horticulture, food processing, animal farming, or human waste from sewage .....
Because it uses Pascal's principle: F=P.A. If you apply small force to small piston you will generate a pressure. According to Pascal's law pressure is the same everywhere in closed system so the same pressure will act on large piston on .....
Features of living things living things can breathe. living things may or may not walk. living things eat. living things have a life span. ... living things reproduce. ... living things grow. Featuresof non-living things: They do not .....
Chemical pollution is defined as the presence or increase in our environment of chemical pollutants that are not naturally present there or are found in amounts higher than their natural background values. Most of the chemicals that .....
Some of the causes of increasing uric acid are : Drinking too much alcohol Immune-suppressing drugs Purine-rich diet — liver, game meat, anchovies, sardines, gravy, dried beans and peas, mushrooms, and other foods Renal insufficiency .....
The application of tissue culture are: 1. To grow a number of plants from a single plant in a short time. 2. To conserved rare plants. 3. To grow hybrid plants. 4. To grow plants with disease .....
Breathig is the combination form of inhaling of oxygen and exhaling of .....
Men determine the sex of a baby depending because the male carries X or Y chromosome. While women carries X chromosome only. An X chromosome combines with the mother’s X chromosome to make a baby girl (XX) and a Y chromosome will .....
The full form of www is World Wide .....
a single-celled animal that catches food and moves about by extending fingerlike projections of protoplasm. Amoebas are either free-living in damp environments or .....
The total distance between sun and earth is 1 AU ie
Solution : 588 196 ........ = ............... ( Reduce numerators and .....
Leonardo Da Vinci painted the Mona Lisa from 1503 to 1506. Image of Da Vinci and Monalisa .....
Michael Jeffrey Jordan is a former professional American basketball player, Olympic athlete, businessperson and actor. Considered one of the best basketball players ever, he dominated the sport from the mid-1980s to the late .....
Solution : 2x+3x+3x-8 = 180 ( supplementary angle adds up 180) or, 8x - 8 = 180 or, 8x = 180+8 or, 8x = 188 or, x = 23.5 so, 2x+3x = 5x = 5 * 23.5 = 117.5 and, 3x - 8 = 3*23.5 - 8 = 70.5 - 8 = .....
Electric current is defined as the rate of flow of negative charges of the conductor. In other words, the continuous flow of electrons in an electric circuit is called an electric current. .....
Cell mean कोशाणु in .....
Burette is a glass tube with measurements printed on it and with a small tap at the base, used for adding a measured quantity of liquid into .....
he kidneys are a pair of fist-sized organs located at the bottom of the rib cage. There is one kidney on each side of the spine.
Kidneys are essential to having a healthy body. They are mainly responsible for filtering waste products, .....
Volume refers to the amount of space the object takes up. In other words, volume is a measure of the size of an object, just like height and width are ways to describe size. Space occupied by water is its volume. Volume of water can be .....
The South Asian Association for Regional Cooperation (SAARC) is the regional intergovernmental organization and geopolitical union of states in South Asia. There are 8 countries in SAARC. Its member .....
The capital city of China is .....
The value of acceleration due to gravity on the Earth is approximately 10m/s2. However, the value of g of Jupiter is more than 2.5 times greater than the Earth. So, the value will be approximately 25 .....
Increase in urbanization means an increase in the usage of industrial products. This results in consumption of more fuel by industries in order to massively scale up the production of such goods and meet the rising demand. Urbanization brings .....
Helium and Nitrogen gas are used for checking of leakage.
Thermal mean heat and measurement mean to find out out or measure. Heat is measured by using calorimeter. Thermal energy measures the movement of atoms or molecules within a substance. It’s considered less a measurement and more a process .....
Alan Shepard, was the first American and the second person in space. and, Yuri Gagarin was the first human in space, making a 108-minute orbital flight in his Vostok 1 .....
Add the mass of the cube and the man. (m) Find the force F= mg Now find the area (A) of the base from the volume of the cube. ( Volume is given, find length and find area: V = L3 and area = L2) You can find the pressure exerted by the base on .....
Answer: A unit is a known amount of quantity used for the purpose of comparison. Furthermore In order to bring the uniformity in the measurement throughout the world, the standard measurement was introduced. The units of measurement followed all .....
The human skeleton is the internal framework of the human body. It is composed of around 270 bones at birth. It decreases to around 206 bones by adulthood after some bones get fused .....
Your question is missing. Please repost .....
An athlete runs before jumping to gain momentum. Because it helps in jumping higher and longer because of inertia of motion .....
Time is the interval between two events. It is measured using .....
Centigrade equals Fahrenheit at - 40 degrees (minus 40 .....
Shadows are formed when the light gets obstructed by an opaque object. The formation of shadows also depends upon the distance between the opaque object and the screen. In this case the aeroplane is opaque body and the Earth's surface is a .....