Essay on Isaac Newton

Students are often asked to write an essay on Isaac Newton in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

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100 Words Essay on Isaac Newton

Early Life

Isaac Newton was born on January 4, 1643, in England. He was a curious child who loved reading and exploring nature.


Newton is famous for discovering gravity. The story goes that an apple falling from a tree inspired him. He also developed the three laws of motion.

Contributions to Mathematics

Newton invented a type of math called calculus. It helps us understand things that change and is used in many areas today.

Later Life

Newton died in 1727. His discoveries still impact science and mathematics, making him one of the greatest thinkers in history.

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250 Words Essay on Isaac Newton

Early Life and Education

Isaac Newton, born on January 4, 1643, in Woolsthorpe, England, emerged as a pivotal figure in scientific revolution. His early education at King’s School, Grantham, laid the foundation for his future endeavors. Newton’s mother’s attempt to make him a farmer was thwarted by his evident intellectual curiosity, leading to his enrollment at Trinity College, Cambridge.

Developments in Mathematics and Physics

Newton’s most significant contributions lie in mathematics and physics. His work ‘Philosophiæ Naturalis Principia Mathematica’ is a testament to his genius, introducing the three laws of motion, forming the basis of classical mechanics. Additionally, he developed calculus, a branch of mathematics instrumental in understanding changes in quantities.

Optics and the Theory of Colour

Newton’s work in optics revolutionized understanding of light and colour. His experiments with prisms led to the discovery that white light is a composite of all colors in the spectrum, debunking the then-prevailing belief of color being a mixture of light and darkness.

Legacy and Impact

Newton’s legacy extends beyond his lifetime, with his principles still being fundamental to modern scientific thought. His laws of motion and universal gravitation shaped our understanding of the physical world, while his work in optics and mathematics has far-reaching implications in various scientific fields.

In conclusion, Isaac Newton’s contributions to science and mathematics have been monumental, influencing centuries of scientific thought and discovery. His life and work continue to inspire curiosity and innovation in the quest for knowledge.

500 Words Essay on Isaac Newton


Isaac Newton, born on January 4, 1643, in Woolsthorpe, England, was a renowned physicist and mathematician. He is often hailed as one of the most influential scientists of all time. His contributions to the fields of physics, mathematics, and astronomy have had a profound impact on our understanding of the natural world.

Newton’s Early Life and Education

Newton was born prematurely and was not expected to survive. His father had died three months before his birth, leaving him with his mother, who later remarried. Newton was then raised by his grandmother. Despite these early hardships, Newton’s intellectual curiosity led him to the University of Cambridge, where he studied from 1661 to 1665.

The Birth of Newtonian Physics

During his time at Cambridge, Newton developed the foundations of calculus, though it wasn’t until later that he fully developed and published his work. The university closed in 1665 due to the Great Plague, and Newton returned home. It was during this period, known as his annus mirabilis, or “year of wonders”, that he made some of his most significant discoveries.

Among these was the law of universal gravitation, inspired reportedly by the fall of an apple from a tree. He proposed that every particle of matter attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. This was a revolutionary concept that provided a unified explanation for terrestrial and celestial mechanics.

Newton’s Three Laws of Motion

In his work “Philosophiæ Naturalis Principia Mathematica”, Newton outlined his three laws of motion. The first law, often called the law of inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. The second law established the relationship between force, mass, and acceleration. The third law, known as the action-reaction law, states that for every action, there is an equal and opposite reaction.

Contributions to Optics

Newton’s contributions were not limited to physics and mathematics. He also made significant advancements in the field of optics. His experiments with prisms led to the discovery that white light is composed of a spectrum of colors, which he described in his work “Opticks”. He also built the first practical reflecting telescope, known as the Newtonian telescope.


Isaac Newton’s contributions to science have shaped our understanding of the physical world. His laws of motion and universal gravitation laid the groundwork for classical physics, and his work in optics expanded our understanding of light and color. Despite personal hardships and the tumultuous times in which he lived, Newton’s relentless curiosity and dedication to scientific exploration cemented his place in history as one of the greatest scientists of all time. His legacy continues to inspire scientists and researchers, reminding us of the boundless possibilities of human intellect.

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  1. The essay was so perfect but the date of birth is not same in 1st and 3rd may be the date of birth is wrong at in one essay.

  2. Nikee Kishor Lakra says:

    Very nice and good essay

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