Refraction and Refractive Index
Physics can be a scary ordeal for some and many scholars want a program or schedule that supports and helps them in studying physics. We here would like to provide a rough understanding of what the subject entails and how to go by studying it.
As frustrating as this may sound, students will require some basics of math when tackling the subject. One doesn’t need to know everything but the student should know enough. Math’s serves physics in explaining its concepts in a precise and clear manner. So existing math knowledge is important but not as important as the mindset a student has while stepping into the subject. Physics is based on concepts and thus math should not be an obstacle in accessing those simple but precise truths. As mentioned earlier, it’s all about the attitude one has towards learning.
What is Physics?
Physics functions in a stimulating and exciting dimension. What we mean by this is that things keep changing in the world of physics with every new discovery. As the theories progress or new discoveries are made, sometimes not only the answer but the whole question changes. Due to this many individuals try to define physics by what it was rather than what it is and will be, in turn missing a huge facet of the subject.
As vague as the above paragraph sounds it’s still important to know some solid definitions as to what and how physics contributes to our physical understanding of the world.
- The subject tries to define the universe in the simplest terms available. That is done by specifying basic quantities and units, for instance, velocity, electric field and kinetic energy.
- The subject also tries to find relations between fundamentally measurable quantities such as the Newton’s laws, special relativity and conservation of energy.
Physics is an attempt to comprehend the functioning of our universe through the simplest of the terms.
Branches of Physics
This segment is related to the forces applied on bodies in rest or motion and can be majorly categorized into statics (the body is at rest), kinematics (study of motion) and dynamics (study of motion with the forces applied on it).
This segment deals with the associations between heat and other types of energy. It also focuses on the characteristics of heat, its manner of transfer and its measurement.
In the early 19th century connections between electricity and magnetism were discovered and since then they have been studied together. An electric current can be created with fluctuating magnetic fields and similarly an electric current also gives rise to magnetic fields.
Relativity was a theory coined by Einstein and it is concerned with Newtonian physics in which energy and velocity are dealt with in the speed of light. It is considered a part of modern physics because it was created in the early 20th century and to test it the scientist needed an extremely evolved technology. It is as deterministic as classical physics and completes the awakening that Newton initialized.
This segment cover the study of light and its behavior and is concerned with all forms of light visible and invisible such as ultraviolet and infrared radiation. All these forms of light display various phenomena such as polarization of light, dispersion, diffraction, interference, refraction and reflection.
Learn Physics Online
Some of the best ways of learning physics online are:
- Contact the professor for questions: Talk to the teacher and ask questions using email or any other method to communicate with him/her.
- Participate in online class by entering the online forums, asking questions, or commenting your doubts.
- Take the tests: Take the tests and understand the detailed feedback report from the tests. Take tests more often and see your level of understanding.
- Review the things that you read. Ideally once a week you should revise and go along with your topics.
Physics deals more with application than rote learning. We try to provide you with a comprehensive list of formulas in a simple format. Our effort is focused on helping the student examine the kind if question that’s provided to them, search for the correct formula and then apply the values to compute the correct answer.
The student may have learnt the various concepts and theories physics offers and their application may be clear too but when it comes down to numerical and applying the formulas a basic factor of avoiding silly mistakes comes into play. We in our website offer you a simple and unique set of calculators which can be used to confirm solved problems or even solve problems that may be too difficult in one view. So, solve them with the online calculating tools we provide absolutely free and enjoy learning Physics with BYJU’s.
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