An object with mass 2.7 kg falls through
Jupiter’s atmosphere. What is the
acceleration of the falling object (in m/s2)?
Rank
1
2
Responses
3
4
5
6
0%
0%
1
2
0%
3
0%
4
0%
5
0%
6
An object with mass 2.7 kg falls
through Jupiter’s atmosphere. What is
the weight of the falling object (in N)?
Rank
1
2
Responses
3
4
5
6
0%
0%
1
2
0%
3
0%
4
0%
5
0%
6
In order to find the velocity needed to
keep a satellite in a circular orbit
around the earth, the mass of the
satellite must be taken into account.
A. True
B. False
se
0%
Fa
l
Tr
ue
0%
The moon is constantly falling
towards the earth.
A. True
B. False
se
0%
Fa
l
Tr
ue
0%
The formula 𝑣 =
𝐺𝑀
𝑅
relates velocity
(v) to the mass (M) and radius (R) of an
object. What happens if v > c?
p.
..
nd
th
is
w
s
no
t
es
e
Th
ob
je
c
o
N
ob
je
c
ts
at
te
xi
s
is
fie
s
do
e
ul
a
m
fo
r
e
Th
0%
n.
..
0%
or
..
0%
t,
a
A. The formula does not
work, since v > c cannot
happen.
B. No object satisfies this
property!
C. These object exist, and
nothing can orbit this
object at a distance < R.
Like in the movies, we want artificial gravity on a space
station. A cylindrical space station 275 in diameter spins
about its central axis. How many revolutions per minute
must it turn so that the objects inside and against the outer
hull experience an acceleration equal to g?
Rank
1
2
Responses
3
4
5
6
0%
1
0%
2
0%
3
0%
4
0%
5
0%
6