Physical Laboratory Manual: For Secondary SchoolsAmerican Book Company, 1909 - 192 pages |
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Common terms and phrases
acid air column amperes angle Apparatus barometer battery beam balance binding post block boiling point bottle brass burette calculate calorimeter candles centimeters circuit clamp coil copper cylinder Daniell cell data as follows density determine diameter direction distance divided doubtful figures elongation error exactly focal length fork frequency galva heat Hence inches index of refraction index reading iron Jolly balance knife edge last exercise lens liquid load measure mercury meter stick millimeters mirror needle notebook obtained Ohm's law pendulum piece plane plate pointer pole position prism Procedure proportion Purpose ratio Record the results refraction resistance results as follows ruler scale scale ratios screw shown in Figure specific gravity spool steam Take the temperature tangent galvanometer telegraph sounder thermometer thread tion trial velocity of sound vernier vertical vibration volume wave length weight wire zero zinc
Popular passages
Page 129 - Therefore, it may be stated in general that the boiling point of a liquid is the temperature at which the vapor pressure of a liquid becomes equal to the external pressure acting upon the surface of the liquid.
Page 100 - It may also be defined as the sine of the angle of incidence divided by the sine of the angle of refraction, as light passes from air into the substance.
Page 165 - But since the currents are proportional to the tangents of the angles of deflection, the tangents can be substituted for the currents in the above proportion. Let A = the average deflection in the first case. Let A' = the average deflection in the second case.
Page 40 - ... thus be located. Success in this experiment depends very largely upon the accuracy with which these points are located. o. Read each balance with great care and record on the paper near it the force indicated. d. Remove the paper and connect each of the three pairs of points by fine lines. Represent the junction of the lines by A, and the direction of the forces by arrowheads. Make all construction lines dotted. Sele'ct a convenient scale and lay off from A on each of these lines a distance which...
Page 123 - ... varying in size from that of a walnut to that of a small child's head — the taste more or less aromatic, sweet, or subacid. It is produced on spurs, which spring from branchlets of two or more years growth, and continue to bear for a series of years.
Page 39 - Operations. — (1) Connect the hooks (Fig. 13) of two of the balances by a cord 50 to 60 cm. long, having first passed it through a loop in the end of another cord 20 to 30 cm. long. Attach this shorter string to the hook of the third balance. (2) Place the balances thus connected backs down on the table, passing the rings of the first two over nails driven in the table 30 to 50 cm. apart, or over nails in the small boards clamped to the table. If the indexes of the balances are not at zero when...
Page 22 - IV. Place the body to be weighed in the left.hand pan, and the weights in the right.hand pan.
Page 145 - ... REMARKS ON THE USE OF THE TANGENT GALVANOMETER The instrument should be placed on a firm table where it will be as free as possible from disturbance and local iron influences, and where, if possible, it can remain undisturbed for an indefinite time. In placing the instrument, see that it is level, that the plane of the coil is in the magnetic meridian, and that the two ends of the pointer are at zero. When once adjusted in position, great care should be taken not to move it from its position.
Page 58 - Appendix, find the correction for elevation above sea level, using the temperature given by the outside thermometer. Add this. Why? (Ascertain the elevation from the instructor...
Page 4 - ... measurements ; eight, to mechanics of solids ; twelve, to mechanics of fluids; eight, to sound; twelve, to light; nine, to heat; twenty, to magnetism. There is an appendix with hints for the teacher and twenty tables of constants for the pupils