Greek Alphabet Greek letters are often used to represent functions in mathematics and science and other areas of engineering also. Letter Uppercase Lowercase Alpha Α α Beta Β β Gamma Γ γ Delta Δ δ Epsilon Ε ε Zeta Ζ ζ Eta Η η Theta Θ θ Iota Ι ι...
The terms “mass” and “weight” can be used interchangeably in daily conversations, but the two words have different meanings. The difference between mass and weight is that mass is the amount of matter in a material, and weight is a measure of how gravity acts on that mass. Mass is...
Motion If an object changes its position with respect to its surroundings with time, then object is said to be in motion. The time rate of change of position of the object in any direction is called average speed. The shortest path between the final and the initial position of...
Buoyancy The tendency of a liquid to exert an upward force on object immersed in it is called buoyancy. Buoyant force is an upward force which acts on object when it is immersed in a liquid. It is also called upthrust. When two balls made of different metals having different...
