HOOKE'S LAW Introduction In physics, Hooke's Law is one of the fundamental principles governing how objects deform under external forces . Named after the 17th-century British physicist Robert Hooke, this law provides a crucial understanding of the behavior of elastic materials, such as springs and rubber bands. Whether stretching a rubber band or compressing a spring, Hooke's Law helps explain what happens when forces act on these materials. What is Hooke's Law: Hooke's Law states that the force F needed to extend or compress a spring by some distance x is proportional to that distance. Mathematically, it is expressed as: F= -kx Here k represents the spring constant, which is the measure of the stiffness of the spring, and x is the displacement from the displacement position. The negative sign indicates that the force exerted by the spring is in the opposite direction of the displacement. Understanding the Spring Constant: The spring constant k is a critical co...
SCALAR AND VECTOR QUANTITIES Table of Contents: What are Physical Quantities What are Scalar Quantities What are Vector Quantities PHYSICAL QUANTITIES: Those quantities which can be measured and have a unit are called Physical Quantities. They are divided into two types of quantities Scalar Quantities Vector Quantities Scalar Quantities: Those quantities which are specified by their Magnitude and unit only are termed as Scalar Quantities. Magnitude is nothing but it is a number for instance, 5 kg of sugar. Here 5 is Magnitude and kg is the unit. For Example: Speed Distance Energy Workdone Power Vector Quantities Those quantities which are specified by their magnitude + unit and direction, are called Vector Quantities. For Example: Velocity Acceleration Force Tension Graphical Representation of Vect...