Category Physics

Floating and Sinking with examples Floating – An object will float on a liquid, if its density is less than the density of the liquid.Sinking – An object will sink in a liquid, if its density is more than the…

What is motion? Motion is the fundamental concept in physics that describes how things move and their changes in location with respect to a frame of reference. Motion helps in scientific fields, including physics, engineering, astronomy, and even everyday experiences.…

Terms used in sound Decibel (dB) The unit of measure loudness level of sound. It’s a logarithmic scale where a small change in decibel level represents a large change in sound intensity. For example, a whisper might measure around 20…

Elements and their Symbols with atomic numbers Element Symbol Atomic Number Hydrogen H   1 Helium He   2 Lithium Li   3 Beryllium Be   4 Boron B   5 Carbon C   6 Nitrogen N   7 Oxygen O   8 Fluorine F   9 Neon Ne…

First 118 elements of the periodic table with their symbols and typical valences. No Element Name Symbol Valency 1 Hydrogen  H  +1 2 Helium  He  0 3 Lithium  Li  +1 4 Beryllium  Be  +2 5 Boron  B  +3 6 Carbon …