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QUIZ FROM GROUP 1
QUIZ FROM GROUP 1
20 terms
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1
A postulate is something that is accepted as true at the beginning of a logical article
True
False
2
The Result of Michelson-Morley experiment is ...
The speed of light depends on the frame of reference
Ether is not exist
The presence of ether affects the speed of light
Light propagates without the medium
3
The laws of physics must be the same in all inertial reference frames
False
True
4
Special relativity is applied to …
generalcases of relativity.
reference frames that do not accelerate.
referenceframes accelerating.
very difficult mathematical problems.
5
According to the special theory of relativity, physical laws are the same in frames of reference which ...
Move at uniform velocity
Accelerate.
Move in ellipses.
Move in circles.
6
A spaceship moving away from the Earth at a speed of 0.9c firing a beam of light.The speed of light relative on earth..
c
More than 0.1c but less than c
0.1c
More than c but less than 1.9c.
7
How many postulates are there in the special theory of relativity?
2
4
3
1
8
The special theory of relativity was derived by ....
Newton
Einstein
Sitter
Galileo
9
The speed of light c is ....
3\times 10^8mil/h
3\times 10^8m/s
3\times 10^8km/h
none
10
The speed of light is a constant across all reference frames
True
False
11
The laws of Physics change with your point of view
True
False
12
We experience Einstein's Theory of Relativity in our everyday life when we use
Toasters
Microwave ovens
Global Positioning System
Graphing Calculators
13
We customarily say that Earth revolves around the Sun. We can also say that the Sun revolves around Earth
True
False
14
A train moving with a constant speed is an example of an inertial frame of reference
True
False
15
If you travel at the speed of light a second can be observed to last forever
True
False
16
A train slowing down as it climbs a hill is an example of an inertial frame of of reference.
False
True
17
The Michelson–Morley experiment established that ....
There is no observable ether wind at the surface of Earth
The ether is an elastic solid that streams over Earth
Earth does not move with respect to the Sun
The ether moves at c as Earth travels in its orbit
18
The purpose of the Michelson-Morley experiment was to
Detect possible motion of the Earth relative to the ether
Determine the velocity of light
Detect possible motion of the Earth relative to the sun
Detect possible motion of the sun relative to the ether
19
A particle is moving with a velocity c relative to S, its velocity as observed by an observer in the frame S
’
is ....
c
0.75 c
0.5 c
Zero
20
A train stopped at a station is an inertial frame of reference.
False
True
