A unit is a standard measure used to express physical quantities like length mass and time. It provides a reference for consistency in measurements. Units are classified into fundamental and derived types and systems like SI ensure global uniformity. Accurate ...
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Liquid crystals are materials that exhibit properties between solids and liquids. They flow like liquids but have an ordered molecular structure similar to solids. Used in displays, sensors, and optical devices, liquid crystals change orientation in response to electric fields, ...
Forces are interactions that cause an object to accelerate, change direction, or deform. They can be classified as contact forces (e.g., friction, tension) and non-contact forces (e.g., gravity, magnetism). Forces are measured in newtons (N) and are described by Newton’s ...
Work done is defined as the energy transferred when a force acts on an object causing it to move. It is calculated as the product of force and displacement in the direction of the force. The unit of work is ...
Elongation is the increase in length of a material when subjected to tensile stress. It is a measure of how much a material stretches under load and is typically expressed as a percentage of the original length. Elongation is crucial ...