Essentials of PhysicsAmerican Book Company, 1913 - 536 pages |
From inside the book
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Page 73
... turn a dynamo . When a ball is fired 74. The Conservation of Energy . from a rifle , none of the energy that is developed by the combustion of the powder is lost , but it is all transformed into other forms of energy . Both the rifle ...
... turn a dynamo . When a ball is fired 74. The Conservation of Energy . from a rifle , none of the energy that is developed by the combustion of the powder is lost , but it is all transformed into other forms of energy . Both the rifle ...
Page 89
... turn it up on end if the marble weighs 158 lb. per cubic foot ? IV . THE PENDULUM 88. Simple Pendulum . The ideal simple pendulum is one in which a heavy material particle is hung from a fixed point with a weightless cord . It is ...
... turn it up on end if the marble weighs 158 lb. per cubic foot ? IV . THE PENDULUM 88. Simple Pendulum . The ideal simple pendulum is one in which a heavy material particle is hung from a fixed point with a weightless cord . It is ...
Page 116
... turns 10 times per second and is 10 in . in diam- eter . This is belted to a shaft S , 6 in . in diameter , upon ... turn every time the pedals go round ? How far does the bicycle go , the rear wheel being 28 in . in diam- eter ? How ...
... turns 10 times per second and is 10 in . in diam- eter . This is belted to a shaft S , 6 in . in diameter , upon ... turn every time the pedals go round ? How far does the bicycle go , the rear wheel being 28 in . in diam- eter ? How ...
Page 118
... turns ? The ends of How far apart 28. A jackscrew with a pitch of one half inch has a handle 2 ft . long . Neglecting friction , how much pressure will a pull of 75 lb. at the end of the handle produce at the end of the screw ? How far ...
... turns ? The ends of How far apart 28. A jackscrew with a pitch of one half inch has a handle 2 ft . long . Neglecting friction , how much pressure will a pull of 75 lb. at the end of the handle produce at the end of the screw ? How far ...
Page 162
... turning on air ; D , air pipe . — pipes , iron chipping , drilling , and the like . Rock drills , sand blasts for cleaning metal surfaces , railroad signal FIG . 146. - Diving Suit , to which Air. FIG . 144. Riveting Hammer FIG . 145 ...
... turning on air ; D , air pipe . — pipes , iron chipping , drilling , and the like . Rock drills , sand blasts for cleaning metal surfaces , railroad signal FIG . 146. - Diving Suit , to which Air. FIG . 144. Riveting Hammer FIG . 145 ...
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Common terms and phrases
amperes angle axis ball beaker binding posts body called candle power carbon cell center of gravity charge circuit coil color conductor convex lens copper cylinder Demonstration density diameter direction disk distance dynamo earth electric electroscope energy equal friction galvanometer gases give glass rod glass tube heat horizontal inch increase induction iron lamp lens lever Leyden jar light lines of force liquid machine magnet measure mechanical advantage mercury metal mirror molecules motion moving needle number of vibrations ohms parallel Pascal's Law passes pendulum piece piston plane plate pole position potential poundal pressure pump rays reflected refraction resistance result rotation scale sewing needle shown in Fig shows side sound spark specific gravity steam strike surface suspended temperature thermometer tion tone vapor velocity vertical vibrations volts wave length weight wheel wire zinc
Popular passages
Page 80 - Every particle of matter in the universe attracts every other particle with a force that varies directly as the product of their masses, and inversely as the square of the distance between them.
Page 49 - Change of motion is proportional to the impressed force and takes place in the direction of the straight line in which the force acts.
Page 81 - While the term gravitation is applied to the universal attraction existing between particles of matter, the more restricted term gravity is applied to the attraction that exists between the earth and bodies upon or near its surface. The law given above applies to gravity, provided that d is measured in a straight line from the center of the earth to the center of mass of the body. This line is called a vertical line, or sometimes a plumb line (from the Latin word plumbum, which means " lead "), as...
Page 186 - Jar, bent towards the negative side ; a pith ball, under similar circumstances, moves in the same direction ; when a charged Jar is placed under the receiver of an air pump, and the air is exhausted, a luminous cloud flows from the positive to the negative side, in whichever way the Jar is electrified.
Page 178 - The temperature remaining the same, the volume of a given mass of gas varies inversely as the pressure acting upon it. This may be expressed by the proportion V: V = P' : P, from which we get Pr=P'V, (42) ie PV= a constant quantity.
Page 148 - ... twenty years ago, sought to graft upon this basis a system of psychology ; and two years ago a second and greatly amplified edition of his work appeared. Those who...
Page 147 - A body immersed in a liquid is buoyed up by a force equal to the weight of the liquid displaced by it.
Page 282 - ... the specific heat of a substance is the number of calories required to change the temperature of 1 g.
Page 49 - Every body must persevere in its state of rest, or of uniform motion in a straight line, unless it be compelled to change that state by forces impressed upon it.
Page 446 - A'B = AB. This means that the image of a point in a plane mirror is on a perpendicular from the point to the mirror and as far behind the mirror as the object is in front of it.