Class XI Exercise 4 – Motion in a Plane Physics Question 4.1: State‚ for each of the following physical quantities‚ if it is a scalar or a vector: volume‚ mass‚ speed‚ acceleration‚ density‚ number of moles‚ velocity‚ angular frequency‚ displacement‚ angular velocity. Answer: Scalar: Volume‚ mass‚ speed‚ density‚ number of moles‚ angular frequency Vector: Acceleration‚ velocity‚ displacement‚ angular velocity A scalar quantity is specified by its magnitude only. It does not have any
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The Physics of Baseball The sport of baseball has been around for over two hundred years‚ roughly since the 1800s. Invented by a man named Alexander Cartwright. It is known as “Americas past time.” Baseball is the national sport of the USA. The first baseball game played was in New York on June 19‚ 1845. And is played by thousands of people throughout the years. Much like any sport‚ it has changed with time. The first rulebook of baseball was issued in 1877. And it has been changing every year
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The PSBB Millennium School Geruhambakkam Chennai XII Physics Worksheet Electric charges and field 1. 1. An oil drop of 12 excess electrons is held stationary under a constant electric field of 2.55x104 v/m. The density of oil is 1.26 gm/cc. Estimate the radius of the drop.[Ans:1.428x10-6m] 2. Two small spheres each of mass 10-6kg are suspended from a point by silk threads 50 cm long. They are equally charged and repel to a distance of 20cm.Calculate
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ABOUT PHYSICS AND SOME MAIN TOPICS: 1. Temperature 2. Heat and thermal heat (energy) 3. Heat capacity 4. Phases of water 5. Expansion 6. Ideal gas 7. Laws of thermodynamics 8. Heat capacity of gas 9. Specific heat capacity TEMPERATURE is a physical quantity that is a measure of hotness and coldness on a numerical scale.[1] It is a measure of the thermal energy per particle of matter or radiation; it is measured by a thermometer‚ which may be calibrated
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ONE-SCHOOL.NET Physics Equation List :Form 4 Introduction to Physics Relative Deviation Relative Deviation = Mean Deviation ×100% Mean Value Prefixes Prefixes Tera Giga Mega Kilo deci centi milli micro nano pico Units for Area and Volume 1 m = 102 cm 1 m = 10 cm 2 4 2 Value 1 000 000 000 000 1 000 000 000 1 000 000 1 000 0.1 0.01 0.001 0.000 001 0.000 000 001 0.000 000 000 001 Standard form 1012 109 106 103 10-1 10-2 10-3 10-6 10-9 10-12 Symbol T G M k d c m μ n p (100 cm) (10
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Edgar Xiong David Blackburn Period 3 Physics of Flight One may wonder‚ what is flight? Many just stare up into the blue skies above and assume. while others devote their lives to discovering and finding a passion in aviation. Flight can be simply characterized as the [powered] gliding of an object through the air‚ but the wonders of soaring through the air does not simply stop there‚ instead‚ flight is a whole myriad of forces acting on each other‚ as so found out by scientists decades
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of 170 cm. 5. Hang 40 g weights on the hook. 6. The frictionless trolley move forwards by the weights. The light gates will automatically recording the speed of the trolley takes and record down the data on the data logger. 7. Repeat the lab 5 times and do with other weights 50g‚ 60g‚ 70g‚ 80g‚ 90g‚ 100g as the same procedure. Diagram: Out line (not to scale): How the air track works: Air track is a device use for study motion in low friction environment. The air pump out of the
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surface‚ accelerating because of an unbalanced force. The rate at which an object travels down the slope is dependent upon how tilted the slope is; the greater the tilt of the plane‚ the faster the rate which an object will slide down. Thus‚ if a physics cart is released on at a steep slope‚ the acceleration of the cart is expected to roll down the slope at a faster rate. As shown in figure 1‚ when a cart is released on an inclined plane‚ there’s always two to four forces acting upon the cart – the
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constancy of period of pendulum 1581: Robert Norman‚ dip of compass shows that Earth is a magnet 1584: Giordano Bruno‚ suggests that stars are suns with other Earth’s in orbit 1585: Giovanni Benedetti‚ impetus theory is better than Aristotle’s physics 1585: Simon Stevin‚ law of equilibrium 1586: Simon Stevin‚ pressure in column of liquid 1586: Simon Stevin‚ verification of equality of fall rates 1589: Galileo Galilei‚ showed that objects fall at the same rate independent of mass 1592: Galileo
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AS Level Physics: Terms & Definitions:- Measurement Random errors are errors of measurements that result in a scatter of readings about a mean value. Systematic errors are errors of measurement which occur according to some fixed patterns such that they consistently give out an over-estimation or under-estimation of the true value. Accuracy is a measure of how close the results of an experiment agree with the true value. Precision is a measure of how close the results of an experiment
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