Science for Everyone: Aptitude Test: Problems in Physics

315 Pages·1996·3.2 MB·English

by  S.S. Krotov

Science
for Everyone
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Aptitude
Test Problems
in Physics
Edited by
S.S. Krotov
CBs
CBS PUBLISHERS & DISTRIBUTORS
4596/1A, 11 Darya Ganj, New Delhi - 110 002 (INDIA)
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Aptitude
Test Problems
in Physics
Edited by
S.S. Krotov
CBS
CBS PUBLISHERS & DISTRIBUTORS
45943/1A, 11 Darya Ganj, New Delhi - 110 002 (INDIA)
Contributing authors
A . I . Buzd in
V.A. Il'in
I.V. Krivchenkov
S.S. Krotov
N.A. Sveshnikov
Translated from Russian by
Natalia Wadhwa
First published 1990
Revised from the 1988 Russian edition
Ha aussuficaosi :Nun
Printed in the Union of Soviet Socialist Republics
g HaAaTenbeT130 4Hapcto. Lawman peAantan
clutaguo-maTemantitecicou mizeparypbz, 1988
© English translation, N. Wadhwa, 1990
CBS Pub. ISBN 81-239-0488-6
Mir Pub. ISBN 5-03-001468-3
First Indian Reprint :1996
This edition has been published in India by arrangement with
Mir Publishers, Moscow.
© English translation, N. Wadhwa, 1990
For sale in India only.
All rights reserved. No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in any form or by any
means, without the prior permission of the publisher.
Published by
Satish Kumar Jain for CBS Publishers & Distributors
4596/1-4,11 Daryaganj, New Delhi-110002. (India)
Printed at
J.S. Offset Printers, Delhi - 110 051
Contents
Preface(cid:9) 6
1. Mechanics(cid:9) 9
2. Heat and Molecular Physics(cid:9) 53
3. Electricity and Magnetism .(cid:9) 73
4. Optics(cid:9) 99
Solutions (cid:9) 107
Preface
The present state of science and technology
is such that a large number of scientists
and engineers must ha educated at an ad-
vanced level. This cannot be done without
significantly raising the level of teaching
physics, with an emphasis on the individual
and special efforts to detect and nurture
budding talents. In this respect, physics
olympiads for students at secondary school
and vocational training colleges are impor-
tant in bringing to light the brightest stu-
dents and in correctly guiding them in their
choice of profession.
This book, which is a collection of phys-
ics aptitude test problems, draws on the
experience of the physics olympiads con-
ducted during the last fifteen years among
the schoolchildren of Moscow. A Moscow
physics olympiad includes three preliminary
theoretical rounds at the regional, city,
and qualifying levels, followed by a final
practical round. After the final round, a
team of Moscow schoolchildren is selected for
participation in the all-Union olympiad.
The complexity of the problems set for
each round increases gradually, starting
from the simplest problems at regional lev-
el, problems which can be solved simply
by having a thorough knowledge of the bas-
ic laws and concepts of physics. The prob-
lems at the qualifying stage are much more
complicated. Some of the problems at this
level involve a certain amount of research