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Science Assessment test
Science Assessment test
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1
Which is not a method to get the distances of the celestial objects?
Stellar parallax
Spectroscopic parallax
Radar ranging
Transit method
2
What will happen to the time of a moving spacecraft traveling at nearly the speed of light observed by the stationary?
The observed time will be shorter.
The observed time will be longer.
The observed time will drop to zero.
The observed time remains the same.
3
Which implication of Maxwell's equations contradicts Newtonian mechanics?
Galilean transformation is applicable to all laws of physics.
The speed of light is constant in all inertial reference frames.
Light may exceed the cosmic speed limit provided that the source is moving.
Light propagets in ether.
4
A beam of light has a speed of 3.00×10⁸ m/s. If a car moving at 20.0 m/s turns on its headlight, how fast does the beam?
20 m/s
3.00×10⁸ m/s
3.00×10⁸-20 m/s
3.00×10⁸+ 20 m/s
5
Which is not a description of an expanding Universe?
Closed
Flat
Open
Spherical
6
Which criterion led to the reclassification of Pluto from a major planet to as dwarf planet?
It is not gravitationally dominant.
It has a nearly round shape.
It has sufficient mass.
It has many orbits.
7
Which statement is an interpretation of the general theory of relativity?
The effects of acceleration are equivalent to that of gravity.
The laws of physics for inertial and accelerated frames are not the same.
The laws of physics for moving and nonmoving frames are not the same.
The speed of light is constant.
8
Which proposition of Einstein resolved the conflict between Newtonian mechanics and Maxwell's electromagnetic theory?
Galilean transformation was incorrect.
Maxwell's equations were incorrect.
Galilean transformation was correct.
Galilean transformation was only applicable to Newtonian mechanics.
9
What is event horizon?
It is the border within which events in the black hole cannot manipulate.
It is where time begins to slow down as one approaches a black hole.
It is the "bottomeless pit" of the black hole.
It is the center of the black hole.
10
How does the observer at rest on Earth see the length of a spacecraft moving at nearly the speed of light?
The length cannot be determined.
The length remains the same.
The length seems to be longer.
The length seems to be shorter.
