History of Reflection Our story begins in ancient times when humans first noticed their reflections in still water. Picture the awe as they gazed into ponds and streams, marveling at this mysterious phenomenon. Fast forward to ancient Egypt around 3000 BCE, where polished metal surfaces provided a glimpse of one’s appearance, laying the groundwork for […]
Reflection: A Fundamental Process of Light Lays Read More »
History of Mirror Today, let’s embark on a journey through time to explore the captivating history and discovery of mirrors. This is going to be a fascinating ride through the ages. Our mirror odyssey begins in ancient times. Picture yourself in ancient Egypt around 3000 BCE. People back then were quite resourceful, using polished metal
Mirror and Lens: Discovery and contribution to the human evolution Read More »
Definition of Light Light is a form of electromagnetic radiation that our eyes can detect. It’s made up of tiny particles called photons. These photons have both wave-like and particle-like properties, a duality that’s one of the intriguing aspects of light. Now, light moves incredibly fast, about 186,282 miles per second (or 299,792 kilometers per
Light: Definition and scientific prospective Read More »
In our previous blog of the series, we talked about ‘Reflection of sound’. Today we are going to discuss about ‘Application of Ultrasound’. In our previous blogs of the series, we discussed about some features of sound. From the discussion we are familiar with the concept of sound as a form of vibrational waves. These
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In our previous blog of the series, we talked about ‘Production and propagation of sound’. Today we are going to discuss about ‘Reflection of sound’. The term ‘reflection’ is defined as ‘throwing back of an object from a surface’. This term is frequently used for light, heat, and sound waves. In short, every wave propagation
Reflection of Sound Read More »
In our previous blogs of the series, we talked about ‘Works Energy and Power’. Today we are going to discuss ‘Production and propagation of sound’. Production of Sound We are very much familiar with the term sound in our daily life. We have already heard different kinds of sound from various sources and developed our
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In our previous blogs of the series, we talked about ‘Law of Conservation of Energy’. Today we are going to discuss ‘Rate of Doing Work.’. As we have discussed in our previous blogs of work, energy, and law of conservation of energy, work is the product of applied force and displacement and whenever any amount
In our previous blog of the series, we talked about ‘Energy’. Today we are going to discuss ‘Law of Conservation of energy’. As we discussed earlier energy is capacity of doing work. Whenever a work is done, a form of energy must be involved. There are so many forms of energies like, Kinetic Energy, Potential Energy, Electrical
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In our previous blog of the series, we talked about ‘work’. Today we are going to discuss ‘energy’. Energy is the word we use generally in daily life according to our needs. In science, we have a specific meaning and definition for it. The term ‘energy’ is defined as “capacity of doing work”. Hence, if
In some of our previous articles of the series we talked about motion, force, and gravitation. Today we are going to discuss about a scientific term “work”. In our daily life, we are very familiar with the term ‘work’. We all do different work. Even all living things do work in their limited manner like
Buoyancy Force Buoyancy, or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. We have come across many daily life observations of sinking objects in water and floating on it. As boats, ships, plastic bottles and straws float on the surface of water, some
Buoyancy Force and Archimedes’ principle Read More »
Thrust In our fifth blog of the series, we discussed forces. As a force is any interaction when unopposed, will change the state of the object. From the same blog we are also familiar with the concept of net force. When a net force is applied in a particular direction in a small fraction of time
Thrust and Pressure Read More »
From the beginning of the series, we used the term ‘mass’ several times. As a beginner, one always confuses mass with weight. Well, there are very distinct differences in between them. Mass and weight have entirely different definition and characteristics. Mass Mass is more like amount of matter, the things it is made of, or
From our previous blog, we know that earth attract objects with a constant force. Whenever a constant force is applied, velocity starts changing. In our third blog of this series, we already have discussed that change in velocity per unit time is known as acceleration. In this case the acceleration is called acceleration due to
Acceleration Due to Gravity Read More »
From our previous blog, we know that everybody, possessing some mass, attracts each other. Newton derived a formula that can measure the strength of this attraction. He stated that every object in the universe attracts every other object with a force which is proportional to the product of their masses and inversely proportional to the
Universal Law of Gravitation Read More »
In part 5 of this series, we mentioned gravitational force under the types of fundamental forces. Today we are going to discuss the basic introduction of gravitation. In our everyday life we experience a number of activities, phenomena and incidents that happen under the influence of gravitation. We have observed that whenever a ball is thrown upward,
Introduction to Gravitation Read More »
So far, we have come across first and second law of motion. In first law of motion, we learnt that every object tends to remain in its state of motion, until an external force is compelled to change the state. In second low of motion, we described that the rate of change of momentum of
Third Law of Motion and Conservation of Momentum Read More »
As we discussed in previous blog, the first law of motion indicates that when an unbalanced external force acts on an object, its velocity changes, that is, the object gets an acceleration. From our everyday life observation, we know that, during the game of table tennis if the ball hits a player, it does not
Second Law of Motion and Momentum Read More »
We have observed that, if we put an object in motion it comes in state of rest. But if we put any object in state of rest it remains in that state. For example, if we throw a ball upward or roll it on the ground, it will ultimately come in the state of rest,
First Law of Motion and Inertia Read More »
From many centuries the problem of motion and its causes had puzzled scientists and philosophers until Galileo and Newton developed entirely different approach to understand motion. We have observed that, whenever an object is in motion it involves a form of hit, push or pull. In physics, a force is defined as any interaction such
