General Relativity
Q: What is Einstein’s equivalence principle?
Q: What is gravitational lensing? Why is it useful for
cosmology?
Q: What is gravitational time dilation?
Q: What are MACHOs? What does the MACHO microlensing result mean
for dark matter in the Milky Way?
Q: What is the bullet cluster? How does it give evidence for
dark matter and against modified gravity?
A) 1 Formulate two postulates of the Einstein’s special theory
of relativity.
2 According to the special theory of relativity, if you are in a
train that moves at nearly the speed of light what would you see if
you look into a mirror? Explain your answer.
b 1 What is the rest energy of a 130 g apple?
The rest energy, E0 =
2 The Sun loses about 4 million tonnes of mass each second due
to nuclear fusion....
Special relativity: describe the principle of relativity
and Lorentz transformations, and derive the effects of time
dilation and length contraction. Also explain the meaning of the
equation E = m c2
Basic understandings of each part of the question please. I am
trying to figureout the concept of my curriculum.
1. Discuss the differences between the Einstein’s Theory of
Relativity and Classical Physics Theory (i.e. Galileo and Newton,
etc.)
2. Discuss the wave-particle duality of light and its
implications. What are possible industrial applications?
In SPECIAL RELATIVITY, what or why is - choose one of the three
alternatives each for a) - d)
a) AN EVENT (1. A line in spacetime - 2. A point in spacetime -
3. A space in spacetime)
b) GENERALLY REFFERED TO AS "THE INTERVAL" (1. Time interval
between events - 2. Space interval between events - 3. Spacetime
interval between events)
c) TIME MULTIPLIED WITH SPEED OF LIGHT (1. To give time the same
unit as space -...
Which statement best describes the difference between special
relativity and general relativity?
a) Only the theory of general relativity includes gravity.
b) The theory of general relativity describes the behavior of
subatomic particles.
c) The theory of special relativity applies only to very massive
objects.
d) Only the theory of special relativity includes gravity.
Which statement best describes the difference between special
relativity and general relativity?
a) Only the theory of general relativity includes gravity.
b) The theory of general relativity describes the behavior of
subatomic particles.
c) The theory of special relativity applies only to very massive
objects.
d) Only the theory of special relativity includes gravity.
When it comes to EINSTEINS SPECIAL RELATIVITY, what is correct -
choose one of the three alternatives each for a) - d)
a) A PHOTON (1. Has energy but no mass - 2. Has mass but no
energy - 3. Has momentum but no energy)
b) A PHOTON (1. Can create massive particles - 2. Can only
create mass-less particles - 3. Ages conversely proportional to its
energy)
c) IS AN EXAMPLE OF AN INVARIANT (1. Momentum - 2. Energy...
What is true when it comes to the concept of FLOATING FREE in
SPECIAL RELATIVITY, choose one of the three alternatives each for
a) - d)
a) AN OBSEVER NEEDS ACCESS TO (1. His own watch (wrist-watch
time) - 2. All synchronised watches in ALL Free-Float Frames - 3.
All synchronised watches in ONE Free-Float Frame)
b) A TEST-PARTICLE (1. Has zero mass - 2. Generates neglectable
gravitational field - 3. Is a standardised particle
(SI-standard)
c) FREE-FLOAT FRAME IS...