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- 1. Multiple Choice
"Every object in the universe attracts every other object"
Newton's First Law
Newton's Second Law
Law of Universal Gravitation
Law of Inertia & Gravity
- 2. Multiple Choice
The amount of matter something has refers to
Mass
Weight
Gravity
Atom
- 3. Multiple Choice
The measurement of the pull of gravity on an object refers to
Mass
Weight
Matter
Gravity
- 4. Multiple Choice
An astronaut weighs ______ on the Moon than on the Earth.
More
Less
The same
Different
- 5. Multiple Choice
Why would an astronaut weigh more on Jupiter than on Earth?
Jupiter has less mass, and therefore more gravity
Jupiter has more mass, and therefore more gravity
Jupiter has less mass, and therefore less gravity
Jupiter has more mass, and therefore less gravity
- 6. Multiple Choice
In the formula Fgrav=G*m1*m2/d2 , what does G stand for?
Mass of object 1
Mass of object 2
Distance between 2 objects
Gravitational constant
- 7. Multiple ChoiceTwo factors effecting the magnitude of the force of gravity between 2 objects are...mass and distancemass and matterdistance and weightweight and mass
- 8. Multiple Choice
When will the forces of gravity between two objects be the GREATEST?
when the masses of both objects are small and the objects are far apart
when the masses of both objects are large and the objects are close together
when the masses of both objects are small and the objects are close together
when the masses of both objects are large and the objects are far apart
- 9. Multiple Choice
When will the gravity between two objects be the LEAST?
when the masses of both objects is small and the objects are close together
when the masses of both objects is small and the objects are far apart
when the masses of both objects is large and the objects are close together
when the masses of both objects is large and the objects are far apart
- 10. Multiple Choice
Which statement about gravity is true?
gravity causes objects to pull towards one another
gravity causes objects to push away from each other
gravity only takes place between planets
the moon doesn't have any gravity
- 11. Multiple Choice
Which model has greater gravitational attraction (if any)Model AModel BBoth Model A and Model B (same gravity) - 12. Multiple Choice
An astronomy textbook, when printed out, weighs 4 pounds on the surface of the Earth. After finishing your course, you are so tired of the book, you arrange for NASA to shoot it into space. When it is twice as far from the center of the Earth than when you were reading it, what would it weigh? (Note, assume that the book has been moving away from the Earth, not falling freely around it.)
4 lbs
8 lbs
2 lbs
1 lb
16 lbs
- 13. Multiple Choice
Which of the following statements about the force of gravity is FALSE?
it is a universal force, which acts everywhere in space
its strength decreases as the square of the distance
its strength is inversely proportional to the mass: the more mass, the less gravity
the force never becomes zero
it causes the paths of the planets to be ellipses and not straight lines
- 14. Multiple Choice
To come up with the precise mathematical form of his law of gravity, Newton first had to invent the mathematical techniques that we now call:
algebra
ratio and proportions
angular momentum
calculus
scientific notation
- 15. Multiple Choice
Newton's reformulation of Kepler's third law allows us to measure the masses of bodies in orbit around each other, if we can measure:
the rotation rate of each object
the distances and periods of revolution
the eccentricities and semi-major axes
the force and the reaction force
the sweetness of those fig-filled cookie bars
- 16. Multiple ChoiceGo 3 times farther away and the force of gravity drops by _____3 times6 times9 times12 times
- 17. Multiple ChoiceWhat can be described as "falling and missing the ground"?acceleratingfree-fallingorbitingattaining escape velocity
- 18. Multiple ChoiceGravity from an object _____stops at it's surfacestops after about 10,000 kmstops at the edge of the solar systemgoes on forever
- 19. Multiple ChoiceWhich term is defined as "how much mass is inside a given volume"?sizebrightnessweightdensity
- 20. Multiple ChoiceWhen the distance from an object is doubled, the force of gravity drops by a factor of _____241016
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