Physics ssc chapter 2

১. স্থিতি ও গতি (Rest and Motion)

স্থিতি: পারিপার্শ্বিকের সাপেক্ষে কোনো বস্তুর অবস্থানের পরিবর্তন না হওয়াকে স্থিতি বলে।
গতি: পারিপার্শ্বিকের সাপেক্ষে কোনো বস্তুর অবস্থানের পরিবর্তন হওয়াকে গতি বলে।
পরম স্থিতি বা পরম গতি: মহাবিশ্বে কোনো কিছুই পরম স্থিতিশীল বা পরম গতিশীল নয়; সবকিছুই আপেক্ষিক।

২. গতির প্রকারভেদ

১. রৈখিক গতি (Linear Motion): সোজা পথে কোনো বস্তুর গতি (যেমন: সোজা রাস্তায় গাড়ির গতি)।

২. ঘূর্ণন গতি (Rotational Motion): নির্দিষ্ট বিন্দুকে কেন্দ্র করে ঘূর্ণন (যেমন: ফ্যানের পাখা বা ঘড়ির

কাটার গতি)।

৩. চলন গতি (Translational Motion): বস্তুর প্রতিটি কণা একই সময়ে একই দিকে সমান দূরত্ব অতিক্রম করে।

৪. পর্যাবৃত্ত গতি (Periodic Motion): নির্দিষ্ট সময় পর পর একই পথ অতিক্রম করে (যেমন: দোলনার গতি, হৃৎপিণ্ডের স্পন্দন)। ৫. স্পন্দন গতি (Oscillatory Motion): পর্যায়কালের অর্ধেক সময় একদিকে এবং বাকি অর্ধেক সময় বিপরীত দিকে গতিশীল থাকা।

৩. স্কেলার ও ভেক্টর রাশি

স্কেলার রাশি (Scalar): প্রকাশের জন্য কেবল মানের প্রয়োজন হয় (যেমন: ভর, সময়, দূরত্ব, দ্রুতি)।
ভেক্টর রাশি (Vector): প্রকাশের জন্য মান ও দিক উভয়ের প্রয়োজন হয় (যেমন: সরণ, বেগ, ত্বরণ, বল)।

৪. দূরত্ব ও সরণ (Distance and Displacement)

=========================

===============

Main Practice

Internet Basic Course and computer

Watch

What may it be the alternative of student tuition?

Alternative of student tuition

There are alternative jobs for tuition, through which a student can set up his own career as well as at the same time. Among the students, other alternatives have started to become popular. More workplaces are being created as a new possibility. The advantage of getting involved in these tasks is that it can also be a career preparation for you. This experience will be useful in the work life. As a past experience, you can mention it in CV; which is not possible in the case of tuition

But remember that

Whatever you do, remember that reading is always at the top of your priority list. Avoid such work, It

Higher education in Germany for Bengali Students

Europe is one of the preferred destinations for higher education. Germany is one of Europe's most prosperous countries. Bangladesh and others country of students, first choice German. Because there are zero tuition fees and education facilities in education and research. According to the Times Higher Education list, 12 of the world's top 200 universities are located in Germany. In addition to the German language, there is also a chance to read English in the country. There are opportunities for

Sajek Valley of the Clouds Kingdom

Sajek Valley of the Clouds Kingdom, Rangamati

The nature of his genuine Form juice decorated the decorative valley of Rangamati. Before sunrise, clouds of the mountains were seen in the mountains. Even in the morning and evening the clouds are said to be the heaven. It will seem like opening the eyes to wake up in the morning and sitting in the cover of the cloud, this sagek is covered. While walking through the road of Sajek's cloud, you may also feel like a guest in the state of the clouds. Sajek's natural beuty calls tourists with happiness.

How to go

Rainy season is real rime for traveling in the Sagek Valley. If you want to go Sajek Velly, at first you will be to go to Khagrachari town. You go to Khagrachari by bus. From there, you go to Diginala by

HIGHER EDUCATION IN MADINA UNIVERSITY INFORMATION

Higher education, Who does not mind? Everyone wishes to achieve higher degrees by taking higher education in different fields on the soil of the country. If that higher degree is in foreign soil then there is no word. There will be interest in places like "Madinah Munawara". Because, the holiest part of the Muslims is "Madina Munawara". Which is the center of Islamic knowledge science.

01. Free Email Account –

Email from Google. The straightforwardness and ease of Gmail, available over each one of your contraptions. Gmail's inbox causes you remain made by arranging your mail by sort. Google-asserted, electronic email organization gives purposes of enthusiasm of limit, decisions and associations with related organizations. New versatile tabs set you back in charge so you can perceive what's new at first and pick which messages you have to examine and when. Heaps of free stockpiling With 15GB of free stockpiling transversely finished Gmail, Google Drive and Google+ Photos, you won't need to delete messages to save space.