Lesson_2.1_Homework_Solution

Lesson_2.1_Homework_Solution - Lesson 6 Homework Solutions...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Lesson 6 Homework Solutions 1. Give a definition for force using Newton’s first law of motion. A net force is required to change the state of rest or the state of uniform motion of an object. A force is something that changes or tends to change the state of rest or the state of uniform motion of an object in a straight line. 2. What is inertia? How is the concept of inertia used to define mass? Inertia is the tendency of an object to resist change. The only way to change the state of rest or the state of motion of an object is to create an acceleration on it. Inertia is the tendency of an object to resist acceleration. Since an object of greater mass has a greater inertia, mass is a measure of the inertia of an object. 3. Distinguish between mass and weight of an object. Weight of an object is the force with which the earth pulls an object. It is measured in newton (N) and it is a vector quantity. Mass is a scalar quantity and it is measured in kg. While mass of an object remains a constant anywhere in the universe, weight changes depending on the force of gravity on the object. The apparent weight of a freely falling object is zero.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/01/2011 for the course PHY 2048 taught by Professor George during the Fall '10 term at Edison State College.

Page1 / 4

Lesson_2.1_Homework_Solution - Lesson 6 Homework Solutions...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online