ISBN: 9781458945341

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 illustra… Mehr…

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. 1921 edition. Excerpt: ...is it called when electricity is generated by heating two different metals connected in series? Ans. Thermo (thermo-electricity). 54. What do you call the ratio of the amount of heat required to raise a given weight of metal one degree Centigrade to that required to raise the same weight of water one degree? Ans. Specific-heat. 55. What do you call the amount of heat required to raise the temperature of one pound of water one degree Fahrenheit? Ans. British thermal unit (B. T. U.) 56. What, besides the volume of gas in a container, determines its pressure? Ans. Temperature (heat) (warmth). One may note that not only informational questions, but questions involving the application of principles can be easily adapted to this form of test. In physics the use of formulae as a means of expressing physical laws is very common. One aim of most physics courses is to teach the students to be able to solve these equations by the simple process of substitution in the equation of values determined from experiment, obtaining therefrom one unknown term of the equation. In an examination there is little merit in requiring the solution of equations which will involve decimal numbers. By using data which are in integral numbers and which are multiples of quantities which it may be necessary to divide, a test can be quickly made of the pupil''s ability to apply the physical principles involved. Take, for instance, the problem, What Fahrenheit temperature is 200 Centigrade equal to? In order to transform 20 Centigrade into Fahrenheit temperature, the pupil has merely mentally to perform q the multiplication of 5 x 20 and then add 32, giving an even quantity as the answer. It seems reasonable to suppose that the majority of students who can mentally... Herbert Anderson Toops, Books, Reference and Language, Trade Tests In Education Volume 115 Books>Reference and Language This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Volume: 115; Original Published by: Teachers college, Columbia university in 1921 in 135 pages; Subjects: Vocational education; Educational tests and measurements; Mental tests; Intelligence tests; Psychological tests; Education / Testing & Measurement; Education / Counseling / Vocational Guidance; Psychology / Assessment, Testing & Measurement;<