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
CHAPTER 01: PHYSICAL QUANTITIES AND MEASUREMENTS
Before discussing Physics and Its Branches, it is necessary to know What is Science?
SCIENCE:
The knowledge
which is obtained through Observation and Experiments is called Science.
Science is
divided into two categories.
1. Physical Science
2.Biological Science
Physical Science deals with the study of non-living things.
In this branch we have Physics, chemistry, Mathematics etc comes.
Biological Science on the other hand deals with the study of Living Things.
In this category Biology, Zoology, Botany etc. comes.
PHYSICS:
v One of the most ancient science
is Physics.
v Physics is defined as;
“Physics is
the branch of science which observe the nature represent it mathematically and
conclude with the experiment.”
v It basically deals with the
behavior and structure of matter and
energy that derives the matter.
v Physics is the branch of natural
science that studies matter, its motion, its behavior through space and time and
the related entities of energy and force.
v Physics is one of the most fundamental scientific disciplines
and its main goal is to understand how the universe behaves.
v The word “Physics” is derived
from ancient Greek word “Physicos” meaning “Knowledge of nature.”
v It is mother of all the sciences.
v Physicists are categorized into those who observe the nature and solve its mysteries with available information and mathematical approach, they are called Theoretical Physicists. Others are interested to test these theories with experiments are called Experimental physicists.
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