Contrast the differences between defining a physical quantity by its units and by its dimensions. Write down the dimensions of the following quantities : (i) Force (ii) Energy (iii) Power (iv) A ratio of lengths, that is, one length divided by another.

Contrast the differences between defining a physical quantity by its units and by its dimensions. Write down the dimensions of the following quantities : (i) Force (ii) Energy (iii) Power (iv) A ratio of lengths, that is, one length divided by another.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 21PQ

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Question

1 (a)
Contrast the differences between defining a physical quantity by its units and by its
dimensions.
Write down the dimensions of the following quantities :
(i) Force
(ii) Energy
(iii) Power
(iv) A ratio of lengths, that is, one length divided by another.

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