A Laboratory Manual of Physics for Use in Highschools

A Laboratory Manual of Physics for Use in Highschools

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 edition. Excerpt: ...against the other, you can make the strip bend in either direction. How do you explain this? How could you employ a pair of metal strips, such as these, to indicate when the temperature of a room is too high or too low? (c) Call the four metal strips A, B, C, and D. Try them in pairs, as follows: A and B, A and C, A and D, B and O, B and D, C and D. After examining each pair with the flame, record your result as follows: --Coefficient of B Coefficient of C, Coefficient of B Coefficient of D, etc. Only, instead of using letters, record of course the names of the metals. (d) Finally, arrange your metals by name in a column so that the one at the top shall have the largest coefficient of expansion, the one at the bottom the smallest, and the intermediate ones shall also be in the order of their magnitudes. Exercise 50.--Fixed Points of a Mercury Thermometer References.--Crew, 222; Avery, 220-221; Carhart And Chute, 184; Hall And Bergen, 292. Apparatus.--Centigrade thermometer, graduated from the freezing-point to the boiling-point, or, preferably, a degree or two higher; small battery jar; snow or finely crushed ice; retort-stand with ring; hypsometer, as in Fig. 66; rubber band; Bunsen burner; string. Problem.--To find the error in the freezing-point and in the boiling-point of a mercury thermometer, as marked on the glass stem. Experiment.--(a) Freezing-point. Suspend the thermometer from the ring of the retort stand by a string. Fill the battery jar with finely crushed ice, and add about enough water to fill the lower half of the jar. Make a vertical hole in the ice with a lead pencil, and insert the thermometer stem, with the bulb about in the middle of the jar. Pack the ice well around the stem. Read the thermometer occasionally, by raising it..
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Product details

  • Paperback | 62 pages
  • 189 x 246 x 3mm | 127g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236522311
  • 9781236522313