Chapter 1, Problem 66A

(a)

To determine

The metric unit to be used for measurement in the given situation.

Explanation of Solution

Introduction:

Metric system is an internationally accepted decimal system in which measurement is based on meter, kilogram and seconds for measuring length, mass and time respectively. In metric system for measuring length, various prefix with meter depending on how large or small the length is. For example, for measuring the distance between two cities, appropriate unit would be kilometer. On the other hand, for measuring the diameter of a molecule, appropriate units would be nanometers.

Given:Width of hand

For measuring width of hand, appropriate metric unit would be centimeter.

  $\text{1}\text{cm}\text{=}\frac{1}{100}\text{m}$

(b)

To determine

The metric unit to be used for measurement in the given situation,

Explanation of Solution

Introduction:

Metric system is an internationally accepted decimal system in which measurement is based on meter, kilogram and seconds for measuring length, mass and time respectively. In metric system for measuring length, various prefix with meter depending on how large or small the length is. For example, for measuring the distance between two cities, appropriate unit would be kilometer. On the other hand, for measuring the diameter of a molecule, appropriate units would be nanometers.

Given:Thickness of book cover

For measuring thickness of book cover, appropriate metric unit would be millimeter.

  $\text{1}\text{mm}\text{=}\frac{1}{1000}\text{m}$

(c)

To determine

The metric unit to be used for measurement in the given situation,

Explanation of Solution

Introduction:

Metric system is an internationally accepted decimal system in which measurement is based on meter, kilogram and seconds for measuring length, mass and time respectively. In metric system for measuring length, various prefix with meter depending on how large or small the length is. For example, for measuring the distance between two cities, appropriate unit would be kilometer. On the other hand, for measuring the diameter of a molecule, appropriate units would be nanometers.

Given:The height of a classroom

For measuring height of a classroom, appropriate metric unit would be meter.

(d)

To determine

The metric unit to be used for measurement in the given situation,

Explanation of Solution

Introduction:

Metric system is an internationally accepted decimal system in which measurement is based on meter, kilogram and seconds for measuring length, mass and time respectively. In metric system for measuring length, various prefix with meter depending on how large or small the length is. For example, for measuring the distance between two cities, appropriate unit would be kilometer. On the other hand, for measuring the diameter of a molecule, appropriate units would be nanometers.

Given:The distance from home to classroom

For measuring distance from home to classroom, appropriate metric unit would be kilometer.

  $1\text{km =1000}\text{m}$