General Relativity Flashcards
Nicolas Fatio de Duilier believed that space is filled with ____________ that ___________. Nearby bodies shield/shadow one another which results in _________.
randomly moving particles or waves
push on bodies from all directions
Descartes believed space is filled with __________ that ___________. Gravity is ____________.
aether
moves in circular motion/vortices around bodies.
forces exerted by vortices on each other and other bodies.
Experimentally the force model __________ and theoretically it ________.
predicts wrong orbits
violates speed of light limits
The _________ model says the ground is moving up.
The _______ model says the earth pulls objects down towards the ground.
acceleration
force
The curved spacetime models predicts __________. Experimentally it ________ and theoretically it __________.
time dilation
predicts correct orbits
does not violate speed of light limit
Einsteins 3 tests for general relativity (aka classical tests) are:
1. ___________
2. ___________
3. ___________
perihelion precession of Mercury’s orbit
deflection of light by the sun
gravitational redshift of light / gravitational time dilation
Perihelion precession of mercury’s orbit means smaller gravitational forces due to other planets cause ___________, shifting the __________.
major axis to slowly rotate about the sun
line from the sun to the perihelion through an angle each orbit.
Deflection of light by the sun means _______________.
starlight that just grazes the sun will be deflected sightly by the warping of spacetime.
Gravitational redshift of light means ________________.
time dilation causes light to vibrate at lower frequency within a gravitational field, thus light is shifted towards a longer wavelength, ie. red.
The mass of the earth ______________ so ground is accelerating without moving up.
curving spacetime
