No student devices needed. Know more
20 questions
"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
The amount of matter something has refers to
Mass
Weight
Gravity
Atom
The measurement of the pull of gravity on an object refers to
Mass
Weight
Matter
Gravity
An astronaut weighs ______ on the Moon than on the Earth.
More
Less
The same
Different
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
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
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
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
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
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
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
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
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
Explore all questions with a free account