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Chapter 1: Introduction, measurement, estimating

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Physics Principles with Applications
Pages: 2 - 21
Physics Principles with Applications

Physics Principles with Applications

Book edition 7th
Author(s) Douglas C. Giancoli
Pages 978 pages
ISBN 978-0321625922

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Illustration

79 Questions for Chapter 1: Introduction, measurement, estimating

  1. A student’s weight displayed on a digital scale is117.2lb. This would suggest her weight is(a) within1%of117.2lb.(b) exactly117.2lb.(c) somewhere between117.18lband117.2lb.(d) somewhere between117.0and117.4lb

    Found on Page 17

  2. How many significant figures do each of the following numbers have: (a) 214, (b) 81.60, (c) 7.03, (d) 0.03, (e) 0.0086, (f) 3236, and (g) 8700?

    Found on Page 18

  3. What are the merits and drawbacks of using a person’s foot as a standard? Consider both (a) a particular person’s foot and (b) any person’s foot. Keep in mind that it is advantageous that fundamental standards be accessible (easy to compare to), invariable (do not change), indestructible and reproducible.

    Found on Page 17

  4. What, roughly, is the percent uncertainty in the volume of a spherical beach ball of radiusr=0.84±0.04m?

    Found on Page 18

  5. What is the area and its approximate uncertainty of a circle of the radius of3.1×104cm?

    Found on Page 18

  6. Write the following as full (decimal) numbers without prefixes on the units: (a) 286.6 mm, (b) 85 μV(c) 760 mg, (d) 62.1 ps, (e) 22.5 nm, (f) 2.50 gigavolts.

    Found on Page 18

  7. Express the following using the prefixes of Table 1–4:

    Found on Page 18

  8. One hectare is defined as1×104m2. One acre is4.356×104ft2. How many acres are there in one hectare?

    Found on Page 18

  9. The sun, on average, is 93 million miles from the earth. How many meters is this? Express (a) using powers of 10, and (b) using a metric prefix (km).

    Found on Page 18

  10. A typical atom has a diameter of about1.0×10-10m.

    Found on Page 18

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