The straight line around which an object rotates or revolves
What is axis
100
Center-seeking force
What is centripetal force
100
DOUBLE JEOPARDY!!! What does RPM stand for?
rotations per minute
100
What is gravity?
Force of attraction between two objects
100
States that all objects in the universe are attracted to each other with a force that depends on the mass of the objects and the distance between the objects
Law of Uinversal Gravitation
200
DOUBLE JEOPARDY!!!! Spinning around an internal axis
What is rotation
200
Center-fleeing force
What is centrifugal force
200
What is another term for tangential speed?
What is linear speed
200
At what rate does earth's gravity cause objects to accelerate?
10 m/s2
200
DOUBLE JEOPARDY!!!! What is the exact formula for calculating gravitational force?
F = G x m1 x m2 / distance squared
300
Circular motion around an external axis
What is revolution
300
When a car rounds a corner it is held in its circular path by this force
What is centripetal
300
Where is tangential speed slower- the inside horse on a merry-go-round or the outside horse on a merry-go-round?
What is inside horse
300
DOUBLE JEOPARDY!!! How did Newton know a force was acting on the moon?
It followed a circular path (changed direction), and was therefore accelerating. If an object is accelerating, a force must be acting on it
300
What value does "G" represent?
0.0000000000667 N x m(squared)/kg(squared)
400
Linear speed of an object traveling in a circular path
What is tangential speed
400
Why isn't centrifugal force a "real" force?
Doesn't have counterpart; only exists for object in rotating or revolving system; really just inertia
400
DOUBLE JEOPARDY!!!! Which has greater rotational speed- the inside horse on a merry-go-round or the outside horse on a merry-go-round?
Neither- they have the same rotational speed
400
What is perturbation?
When planets' orbits deviate; caused by gravitational force with other planets
400
If the mass of an object doubled, how would the gravitational force between it and another object be affected?
It would double
500
Number of rotations per minute
What is rotatational speed
500
Explain how we can simulate gravity.
Simulated gravity is really just centrifugal force, so if we spin an object fast enough we can simulate gravity
500
What would happen to the moon's orbit if it gained tangetial speed
Would leave Earth's orbit and fly off on a tangent path
500
Jupiter's mass is 300 times greater than the mass of earth, but you would only weigh 2.5 times as much there. Why?
Jupiter's diameter is great and the distance between Jupiter's center and the center of you would be greater.
500
If the distance between two objects increased by 6, how would the gravitational force between the two objects be affected?