Investigating force and motion

1. Investigating
FORCE and
MOTION
CHAPTER 9

2. Position and
Reference
Point
LESSON 1

3. Compare the
two pictures.

5. In the two pictures, the bird
and on of the apples are in
different locations. The bird
in the before picture is on
the tree. In the after
picture, it is on the man’s
hand.

6. Meanwhile, all of the apples in
the before picture are on
the tree. In the after
picture, one of the apples
has fallen to the ground. The
man’s location is the same in
both pictures. In short, his
position has not changed.

7. The position of
an object is the place
where that object is
located.
Start!

8. Words like in front of,
on top, behind, beside
are used to describe the
position.
Start!

13. But how do you know when an
object has moved? Compare the
pictures below.

14. An object has moved if its
position or direction has
changed based on a
reference point.

15. A reference point is a place
or object that is used to
determine if an object is
moving by measuring the
distance between it and
the object.

16. A reference is usually
an object that is
stationary
or not moving.

17. Extend Your Understanding
(Eco-Friendzee)

18. Seatwork #1
Answer “Express Your
Learning”, nos. 1-3 on
pages 277-279 in your
Science book.
Start!

19. Motion
LESSON 2

20. Do you know her?

21. THINGS THAT MAKE
OBJECTS MOVE.

22. PEOPLE

23. WIND
AND
WATER

24. ELECTRICITY

25. GRAVITY

26. MAGNETS

27. Keeping Safe Around
Moving Objects
page 286

28. Seatwork #2
Answer “Express Your
Learning”, Test A on page
287 in your Science book.
Start!

29. Assignment #1
Answer “Express Your
Learning”, Test B and C on
page 288 in your Science
book. Start!

30. Comparing
Moving
Objects
LESSON 3

31. https://www.youtube.com/watch?v=l3qVYscVjiQ

32. Stretching and compressing are just
two of the movement that you can
make objects do. What other
movements do you think objects
can make?

33. The amount of force that is applied
on an object affects the object’s
motion.

34. Objects can also move in different directions.

35. The following are other
examples of objects that
can be both
compressed & stretched:

41. Most rubber bands
are made from
natural rubber
found in the bark of
the rubber tree.

42. Seatwork #3
Answer “Express Your
Learning”, Test A, B, and C
on page 294 in your
Science book.
Start!

43. Assignment #2
Answer “Size Up” on
pages 296-297 in your
Science book.
Start!

44. Review Topics 1, 2, and 3
in Chapter 9 for a quiz on
Wednesday.
Start!