A Grenadian quoted his body mass as 160 lb, a visiting Englishman quoted his as 12 stone while a Frenchman quoted his as 68 kg. Use this information to argue the case for the use of common units. Who had the greatest body mass? (1 stone = 14 lb = 6.35 kg)

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1 A Grenadian quoted his body mass as
160 lb, a visiting Englishman quoted his as
12 stone while a Frenchman quoted his as
68 kg. Use this information to argue the
case for the use of common units. Who had
the greatest body mass?
(1 stone=14 lb=6.35 kg)
2 a Distinguish between a fundamental
quantity and a derived quantity.
b What is meant by the term 'a base unit'?
c Which of the following is an SI 'derived
unit': the candela, the joule, the volt, the
second, the coulomb?
3 Distinguish between the following pairs:
a accuracy and precision
b random error and systematic error
c sensitivity and range
d analogue scale and digital scale.
4 Using suitable examples, explain what is
meant by each of the following:
a standard form
b significant figures.
5 Red light has a wavelength of 700 nm.
What is the wavelength of red light in
metres?
Transcribed Image Text:1 A Grenadian quoted his body mass as 160 lb, a visiting Englishman quoted his as 12 stone while a Frenchman quoted his as 68 kg. Use this information to argue the case for the use of common units. Who had the greatest body mass? (1 stone=14 lb=6.35 kg) 2 a Distinguish between a fundamental quantity and a derived quantity. b What is meant by the term 'a base unit'? c Which of the following is an SI 'derived unit': the candela, the joule, the volt, the second, the coulomb? 3 Distinguish between the following pairs: a accuracy and precision b random error and systematic error c sensitivity and range d analogue scale and digital scale. 4 Using suitable examples, explain what is meant by each of the following: a standard form b significant figures. 5 Red light has a wavelength of 700 nm. What is the wavelength of red light in metres?
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