Knowledge in Metaphysics on viden.io

Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.Modern physics began in the early 20th century with the work of Max Planck in quantum theory and Albert Einstein's theory of relativity. Both of these theories came about due to inaccuracies in classical mechanics in certain situations. Classical mechanics predicted a varying speed of light, which could not be resolved with the constant speed predicted by Maxwell's equations of electromagnetism; this discrepancy was corrected by Einstein's theory of special relativity, which replaced classical mechanics for fast-moving bodies and allowed for a constant speed of light.

Metaphysics

Sujal Gera

errors in measurement, significant figures - Physics paper

Measurement Error (also called Observational Error) is the difference between a measured quantity and its true value. It includes random error (naturally occurring errors that are to be expected with any experiment) and systematic error (caused by a mis-calibrated instrument that affects all measurements). For example, let’s say you were measuring the weights of 100 marathon athletes. The scale you use is one pound off: this is a systematic error that will result in all athletes body weight calculations to be off by a pound. On the other hand, let’s say your scale was accurate. Some athletes might be more dehydrated than others. Some might have wetter (and therefore heavier) clothing or a 2 oz. candy bar in a pocket. These are random errors and are to be expected. In fact, all collected samples will have random errors — they are, for the most part, unavoidable. The significant figures (also known as the significant digits or precision) of a number are digits that carry meaningful contributions to its measurement resolution. This includes all digits except All leading zeros. For example, "013." has two significant figures: 1 and 3; Trailing zeros when they are merely placeholders to indicate the scale of the number (exact rules are explained at identifying significant figures); and Spurious digits introduced, for example, by calculations carried out to greater precision than that of the original data, or measurements reported to a greater precision than the equipment supports.

errors in measurement +3 more

Akansha pandey

Test for - motion in startight line, structure of atom, biological classification, animalia-chordates

motion in startight line If a body travels in a straight line and covers an equal amount of distance in an equal interval of time, then it is said to have uniform motion. In simple words, a body is said to have uniform acceleration if the rate of change of its velocity remains constant. structure of atom Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). biological classification Biological classification is the process by which scientists group living organisms. Organisms are classified based on how similar they are. Historically, similarity was determined by examining the physical characteristics of an organism but modern classification uses a variety of techniques including genetic analysis. animalia-chordates A chordate (/ˈkɔːrdeɪt/) is an animal of the phylum Chordata. During some period of their life cycle, chordates possess a notochord, a dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail: these five anatomical features define this phylum. Chordates are also bilaterally symmetric, and have a coelom, metameric segmentation, and circulatory system.

motion in a straight line +7 more

Akansha pandey

Neet and aiims preparation sample paper

Sample papers are important preparation material used by almost all students during revision for their board exams. Solving sample papers helps a student to understand the pattern of the question paper and the marking scheme of the board question paper.The sample paper is based on the actual question paper format which helps students in getting an overview of the paper pattern including the type of questions like short or long answer type questions, mostly asked topics, marks distribution, etc.Sample papers are important preparation material used by almost all students during revision for their board exams. Solving sample papers helps a student to understand the pattern of the question paper and the marking scheme of the board question paper. Attributes of a good question paper. The question paper setter and evaluator should fulfill their assignment with great honesty, dedication, integrity and seriousness. ... A question paper is the basic tool used in an examination. Sometimes, question papers are under debate for their levels of toughness and lengthy content ...

NEET +8 more

Akansha pandey

Neet and aiims preparation sample paper

NEET +8 more

Akansha pandey

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Knowledge in Metaphysics