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- 1. Multiple Choice
The muon detection experiment helped confirm one aspect of special relativity, namely that:
to a muon distance was contracted.
muons are created in the upper atmosphere.
muons are relatively short-lived.
fewer muons reach the ground than expected.
- 2. Multiple ChoiceA train stopped at a station is an inertial frame of reference.TrueFalse
- 3. Multiple ChoiceA train moving with a constant speed is an example of an inertial frame of reference.TrueFalse
- 4. Multiple ChoiceThe laws of Physics change with your point of view.TrueFalse
- 5. Multiple ChoiceA postulate is something that is accepted as true at the beginning of a logical article.TrueFalse
- 6. Multiple ChoiceHow many postulates are there in the special theory of relativity?1234
- 7. Multiple Choice
The two postulates of special relativity are:
The laws of physics are the same in all inertial frames of reference.
The laws of physics are the same in all non-inertial frames of reference.
The speed of light in a vacuum is c in all inertial frames of reference.
The speed of light in a vacuum is c unless in an inertial frame of reference.
- 8. Multiple Choice
Newtonian Physics does not explain...
The lifetime of muons.
Light being able to travel through a vacuum.
Impulse and momentum.
Space and time.
- 9. Multiple ChoiceThe speed of light (c) =3 x 108 miles/hour3 x 108 meters/second3 x 108 kilometers/hournone of these
- 10. Multiple ChoiceA train slowing down as it climbs a hill is an example of an inertial frame of of reference.TrueFalse
- 11. Multiple ChoiceWhen you approach a light source, the light from that source has a speedgreater than c.less than c.equal to c.
- 12. Multiple ChoiceWhat does the relativity of simultaneity say?Two events may occur at the same time in one reference frame, but not another.If two events occur at the same time in one reference frame, they will occur at the same time in all reference frames.
- 13. Multiple Choice
A passenger at the rear of a train traveling at 15 m/s relative to the ground throws a baseball with a speed of 15 m/s in the direction opposite the motion of the train. What is the velocity of the baseball relative to the ground as it leaves the thrower’s hand? In other words: how fast does a person on the ground see the ball move?
30 m/s
15 m/s
0 m/s
20 m/s
- 14. Multiple Choice
A train is traveling 50 m/s north on a track. A passenger on the train walks to the bathroom 1 m/s to the north. What is the speed of the passenger relative to the train?
1 m/s
51 m/s
49 m/s
50 m/s
- 15. Multiple Choice
A dog and a cat are at a stand-off, running towards each other, both at 12 m/s. What is the magnitude of velocity of the cat relative to the dog?
12 m/s
24 m/s
0 m/s
6 m/s
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