What goes up, must come down . . .
*Teacher Note: All fill in the blank answers are underlined in RED in this presentation
6th Grade Gravity Lesson
Gravity Discussion 6
11

The natural force of attraction between any
two massive bodies, which is directly
proportional to the product of their masses
and inversely proportional to the square of
the distance between them.
Say

What ???
The attraction __________________.
6th Grade Gravity Lesson
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


It holds ______ down on _______.
Responsible for the formation of Earth and
other ______ _______.
Cause of ___________ of all heavenly bodies
◦ Keeps the Moon in ______
around Earth
6th Grade Gravity Lesson
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


The force of Gravity is ________
Greater mass of the objects means _________
___________.
Greater ________ between objects means
less attraction.
6th Grade Gravity Lesson
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

Mass = Amount of ______ in an object
Weight = Mass x ___________ ______
6th Grade Gravity Lesson
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
Newton’s First Law of Motion
◦ “A body in motion tends to stay in motion unless impacted
by an ___________ _______.”
◦ Gravity is an unbalanced force which _____ the object from
its __________ ______.
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
Free Fall
◦ Falling motion of a body that is subject only to the
earth's _____________ field
◦ Free-falling objects do not encounter ____
resistance

Weightless
◦ Not experiencing the effects of _________

Label the picture which shows free fall
6th Grade Gravity Lesson
_____
________
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A Lab on Gravity
6th Grade Gravity Lab
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Do Heavy objects or light objects fall faster?
6th Grade Gravity Lab
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 Will
a heavy object fall faster than
a light one?
???
???
6th Grade Gravity Lab
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•
4 pairs of different objects
•
•
•
•
Sponges
Forks
Cans
Papers
• Stop watch
• Lab Notebook
• Pencil
6th Grade Gravity Lab
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
Develop a step by step procedure to test your
hypothesis
◦ Drop the light and heavy objects
◦
◦
◦
◦
◦
◦
 Find a control procedure to make sure both objects are
dropped at the same time – do not drop then by hand
Record your procedure
Observe the objects hitting the ground
Record your results
Repeat the procedure for each pair of objects
Make a data table to record your results
Record your results
6th Grade Gravity Lab
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
Do the same experiment with objects that
weigh the same but have different shapes
◦ Example – A flat piece of paper and a wadded-up
piece
Vs.

Use a fan to repeat the experiment on each of
the pairs of objects
6th Grade Gravity Lab
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Light Object
Plastic Fork
Heavy Object
Result
Metal Fork
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
Discuss your results
◦ Were they all the same or were there differences?
◦ What caused the differences?
◦ Did the light or heavy object fall faster?



Did the results you got match your hypothesis?
What have you learned about the force of gravity?
What have you learned from this experiment?
6th Grade Gravity Lab
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
What have you learned about the force that
gravity exerts on a falling object?

Note: This is not optional – you must answer
it
6th Grade Gravity Lab
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