TABLE OF CONTENTS - Lindbergh School District

Concept F: Simple machines (levers,
inclined planes, wheels & axles, and
pulleys) affect the forces applied to an
object and/or direction of movement as
work is done
a. Compare and describe the amount of
force (i.e., more, less, or same push or
pull) needed to raise an object to a
given height with or without using
inclined planes (ramps) of different
slopes.
C1
C3
C7
C10
R
a. Using a ruler placed partly under a book
and hanging over the desk, with their hands,
students will experiment lifting one book,
then two, then three. Using a variety of
sizes (of books), students will predict and
record how much force (in number of
hands) is required to lift the book(s) off the
desk. (1.2; 1.3; 2.3; 4.6)
a. Students will discuss and compare the amount
of force used when each book was added. In
small groups, students will tell how many
hands were needed to push down on the books
to lift them.
b. Compare and describe the amount of
force (i.e., more, less, or same push or
pull) needed to raise an object to a
given height with or without using
levers.
C3
R
b. Using spades/trowels in an outdoor
environment, students will experiment
lifting soil under different conditions (soft
soil, compacted soil, soil mixed with roots).
(1.2; 1.3; 2.3; 3.3)
b. Students will observe and discuss the amount
of force used to lift the soil under different
conditions.
c. Apply the use of an inclined plane
(ramp) and/or lever to different real life
situations in which objects are being
raised.
C2
C3
C4
W
R
c. Taking a walk around the school
building/grounds, students will discover
ways inclined planes and /or levers are used
in real life situations. (1.2; 2.3)
c. Students will draw and label one example of
an inclined plane or lever that was discovered
on the walk.
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