Physics - Chapter 4
Newtons First Law of Motion - Inertia
Terms & Objectives


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Note: The following terms and objectives are based on the Indiana Standards 2000 for Physics 1. You may download the complete physics standards by clicking here, or view the standards relevant to Chapter 4 - Newton's First Law here.

New Terms in Chapter 4:

accelerating reference frame


Newton (unit)

fictitious force


Newton's First Law


Law of Inertia

violent motion



static equilibrium

inertial reference frame

natural motion

support force

heliocentric solar system

geocentric solar system

normal force

net force    

Chapter 4 Objectives:

After completing Chapter 4, you should be able to:

  1. ... define force.
  2. ...find the net force acting on an object if:
    1. no forces push/pull on it.
    2. 1 force pushes/pulls on it.
    3. 2 forces push/pull on it in the same direction.
    4. 2 forces push/pull on it in opposite directions.
  3. ... state Newton's First Law.
  4. ... define inertia.
  5. ... identify the conditions necessary for a body to be in equilibrium, and describe all of the forces acting on the body.
  6. ... correctly apply Newton's First Law and the concept of inertia to explain various motions, such as the motion of a person inside an accelerating car.

Possible Preconceptions to Correct:

Do you believe that any of the following statements are true? They AREN'T! When you finish Chapter 4, you should understand that each of these statements is FALSE, and WHY it is false.


BHS -> Mr. Stanbrough -> Physics -> Mechanics -> Newton's Laws -> Newton's First Law -> this page

last update October 15, 2009 by JL Stanbrough