Centripetal Force
Answer the following questions. Mark on the screen. You may change
your mind and re-mark before you hit the "grade test" button.
#1
The centripetal force on a solar system planet is
a.
directed toward the sun
b.
directed away from the sun
c.
directly proportional to the size of the orbit
d.
there are two correct answers in the above set
#2
Mercury has a smaller mass than the Earth, but is closer to the Sun. The centripetal force on Mercury is
a.
less than the force on the Earth
b.
the same as the force on the Earth
c.
larger than the force on the Earth
d.
more data is needed to answer
#3
In the centripetal force formula F =mv
2
/R, the force vector and the velocity vector
a.
are always in the same direction
b.
are always perpendicular to each other
c.
are directed in opposite directions
d.
could be any of above
