Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 1: 24DQ (page 123)

Why is it incorrect to say that 1.0 kg equals 2.2 lb?

Short Answer

Expert verified

Kg is the unit of mass (SI unit system), whereas lb is the unit of force/weight (British unit system).

Step by step solution

01

Mass and Weight

In everyday life, mass and weight are interchangeably used, which is incorrect. Mass is a measure of how much inertia the object has. An object having a larger mass will have larger inertial, i.e., larger resistance to change in its motion.

Whereas on the other hand, weight is the gravitational force on the object by the earth. Mass is always constant, but the weight will depend on the value of acceleration due to gravity which differs from one planet to planet.

02

Kilogram kg and pound lb

Kg is the unit of mass (SI unit system), whereas lb is the unit of force/weight (British unit system).

Hence the statement 1.0 kg equals 2.2 lb is incorrect.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

An antelope moving with constant acceleration covers the distance between two points 70.0apart in6.00s. Its speed as it passes the second point is15.0m/s. What are (a) its speed at the first point and (b) its acceleration?

Question:The density of gold is 19.3 g/cm3 . What is this value in kilograms per cubic meter?

A plastic ball has radius 12.0 cm and floats in water with 24.0% of its volume submerged. (a) What force must you apply to the ball to hold it at rest totally below the surface of the water? (b) If you let go of the ball, what is its acceleration the instant you release it?

You throw a glob of putty straight up toward the ceiling,which is 3.60 m above the point where the putty leaves your hand.The initial speed of the putty as it leaves your hand is 9.50 m/s.

(a) What is the speed of the putty just before it strikes the ceiling?

(b) How much time from when it leaves your hand does it take theputty to reach the ceiling?

According to the label on a bottle of salad dressing, the volume of the contents is 0.473 liter (L). Using only the conversions 1 L = 1000 cm3 and 1 in. = 2.54 cm, express this volume in cubic inches.
See all solutions

Recommended explanations on Physics Textbooks

Wave Optics

Read Explanation

Fluids

Read Explanation

Electricity and Magnetism

Read Explanation

Linear Momentum

Read Explanation

Engineering Physics

Read Explanation

Thermodynamics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free