1. What was the one peculiarity in
a) It predicted that all planets must move in circular orbits
b) It predicted that some substances would be repelled gravitationally
c) It predicted that there would be signals traveling faster than light
d) It predicted that gravitational effects would travel slower than c
2.
Olga and
Yolanda are twins living on a very massive and very compact planet. When she
turned 30 years old, Olga decides to go on a very slow trip to outer space and
when she returns she is 35 years old. Getting home she finds that
a) Yolanda is also 35 years old
b) Yolanda is older
c) Yolanda can be older or younger depending on the direction Olga took while traveling
d) Yolanda is younger
3.
A green bug
lives on the surface of a very massive
planet, when observed from space
a) The bug looks green
b) The bug looks reddish
c) The bug looks bluish
d) One can’t see the bug since light does not travel where there is no air
4.
Astronauts in
a space shuttle are seen to float because
a) There is no gravity in space, where there is no air
b) They are not moving at all
c) The space shuttle and the astronauts are in a freely falling reference frame so that their relative positions are unaffected by gravity
d) Of trick used by the people who film them
5.
An astronaut
in a windowless rocket feels pressed against the back of her seat, then
a) She cannot tell whether the rocket is accelerating or moving at constant speed
b) She can’t tell whether she is accelerating or resting on the surface of some planet
c) She can’t tell whether the rocket it moving at constant speed in space or at rest in space
d) She can’t tell whether she is at rest in space or freely falling towards some planet
6.
An astronomer
on Earth points his telescope towards a distant and very bright star. In
between and along the line of sight there is a very massive, compact and opaque
object. The astronomer sees
a) A ring of stars produced by gravitational lensing
b) Nothing: the star is blocked by the dark object
c) One displaced image of the star due to the gravitational pull from dark object
d) Nothing, the star’s light is red-shifted by the gravitational pull of the dark object
7.
A black-hole
horizon represents
a) The region surrounding the black hole such that nothing can come out form inside it
b) The region on Earth from which the black hole can be seen
c) The surface of the black hole
d) The region surrounding the black hole such that everything inside it must come out
8.
An object
approaching the black hole is seen
a) To move faster and faster, and to have bluer and bluer color
b) To move faster and faster looking redder and redder
c) To move slower and slower and look redder and redder
d) To move slower and slower and look bluer and bluer
9.
Suppose
a) That the astronauts lived in the rocket for one year
b) That the astronauts lived in the rocket for more than one year
c) That the astronauts lived in the rocket for less than one year
d) That his telescope was wrong as he believed nothing could travel in space
10. Suppose Einstein observe s a rocket starting
a trip and then, a year later, he sees it explode. He would have concluded
a) That the astronauts lived in the rocket for less than one year
b) That the astronauts lived in the rocket for one year
c) That the astronauts lived in the rocket for more than one year
d) That his telescope was wrong as he believed nothing could travel in space