TABLE OF CONTENTS - Lindbergh School District

Strand 2: Properties and Principles of Force and Motion
2. Forces affect motion
Major Objectives IS Suggested Activities Suggested Assessments
Concept A: Forces are classified as either contact
forces (pushes, pulls, friction, buoyancy) or noncontact
forces (gravity, magnetism), that can be
described in terms of direction and magnitude.
2.2.A.a Identify and describe the forces acting on
an object (i.e., type of force, direction, magnitude
in Newton’s)
STRAND 7D
Concept D: Newton’s Laws of Motion explain the
interaction of mass and forces, and are used to predict
changes in motion
2.2.D.a & b Recognize that inertia is a property
of matter that can be described as an object’s
tendency to resist a change in motion, and is
dependent upon the object’s mass (Newton’s First
Law of Motion). Describe the effect of a change
in mass of an object on the inertia of that object
(Newton’s First Law of Motion)
STRAND 7E
Concept D: Newton’s Laws of Motion explain the
interaction of mass and forces, and are used to predict
changes in motion
2.2.D.e Determine the overall effect (i.e.,
direction and magnitude) of forces acting on an
object at the same time (i.e., net force)
STRAND 7E
C1
C2
C3
C5
C1
C3
R
Use free-body diagrams to identify type of force,
direction and magnitude. Teacher directed.
(3.5, 4.1.)
Demonstrate law of inertia by discussing car
crashes and purpose of seat belts using the Barbie
dolls.
(1.3, 4.1)
Start with a book on a table. Draw on board. Draw
vertical arrows (vectors), equal and opposite, to
represent weight (up) and gravity (down). The
book is sitting still so the horizontal forces are
equal and opposite. Show by arrows (vectors).
Illustrate different scenarios, like pushing, pulling,
dropping, etc. the book and have students
determine relative length and direction of the
arrows.
Students will individually identify forces
in terms of direction and magnitude.
Students will come up with other
examples of inertia.
Students will present scenarios and
another group draws the arrows.
Concept D: Newton’s Laws of Motion explain the
interaction of mass and forces, and are used to predict
changes in motion
2.2.D.c & f Using information about the mass and
C1
C3
R
(1.6)
Determine force and acceleration using books,
Students will discuss what kinds of forces
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