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If you are missing any part of this worksheet, the answer key will
be posted on the unit page of the class website after the review day
(before the test)
(1 point each written item)
Main Principals of Gravity
Gravity ______PULLS___ all objects to its source.
Gravity effects ____ALL OBJECTS_______ in space.
There are ___TWO___ factors that affect gravity: _____MASS____ & _____DISTANCE_____.
Weight is completely dependent on ____GRAVITY____.
_______________________________________________________________
Law of Gravity:
-GRAVITY PULLS ALL OBJECTS TOWARDS ITS SOURCE
-THE SOUCE OF GRAVITY IS IN THE CENTER OF THE OBJECT
_____________________________________________________________________
Vocabulary Terms you need for the test:
Gravity
Definition:
GRAVITY IS THE “ATTRACTIVE FORCE” BETWEEN ALL OBJECTS IN THE UNIVERSE
What does gravity do to all objects in the universe?
PULLS ALL OBJECTS TOWARDS ITS SOURCE
Gravity is affected by what two variables? ___MASS___ & __DISTANCE__
Everything with ___MASS___ has gravity.
The _____MORE___ mass an object has; the ____MORE___ gravity it will have too.
Q: Why does Jupiter have more gravity than our planet (Earth?)
A: JUPITER HAS MORE MASS THAN EARTH
The _______FARTHER AWAY____ you are from the source of gravity; the ______LESS PULL____ of gravity you will feel.
Q: What will your weight “read” on a scale in space?
A: ZERO
Explain why objects in space are still hard to move:
THE OBJECTS STILL HAVE THEIR MASS = STILL HAVE THEIR INERTIA =STILL HARD TO MOVE
Weight
Definition:
THE EFFECT OF GRAVITY PULLING ON A MASS
A) Weight is completely dependent on: _____GRAVITY____.
B) The ___MORE_____ gravity there is; the ____MORE__ weight an object will have.
C) ____MASS______ and ____WEIGHT____ are NOT the same thing!
D) Explain why mass does not change:
MASS IS A MEASUREMENT OF THE ATOMS THAT MAKE AN OBJECT UP. THESE DO NOT GO AWAY SUDDENLY WHEN YOU TRAVEL INTO SPACE
E) Explain why weight can change:
WEIGHT IS A RESULT OF THE PULL OF GRAVITY FROM A SOURCE. IF THE PULL CHANGES, THE WEIGHT WILL ALSO CHANGE.
F) How do we solve for weight?
WEIGHT = MASS X GRAVITY ACCELERATION (UNIQUE TO EACH OBJECT)
3) Describe Galileo’s famous cannonball drop experiment:
GALILEO
DROPPED CANNONBALLS OF DIFFERENT SIZES/MASSES FROM THE TOP OF THE
LEANING TOWER OF PISA. NNO MATTER THE SIZE OR MASS OF THE BALL, THEY
ALWAYS HIT THE GROUND AT THE SAME TIME. HE CONCLUDED THAT ALL
OBJECTS WILL ACCELERATE THE SAME
A) The results of this experiment showed that all objects will do what?
ACCELERATE DOWNWARD AT THE SAME RATE
B) How have we proven in modern times that Galileo was correct?
DROPPED A HAMMER AND FEATHER ON THE MOON (FELL TOGETHER)
C) At what rate do all objects accelerate due to gravity on Earth?
9.8 m/sec2
45 FRANCHISING 1 MISSING WORDS STARTING A BUSINESS IS
55 LIMITED AND UNLIMITED LIABILITY 1 MISSING WORDS A
APPENDIX C – EXAMPLE MISSING FROM CARE RISK ASSESSMENT
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