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Merch
Quizzes
FAQ
About
Links
Blog
Universe & Physics
What causes time dilation in special relativity?
Changes in gravitational potential
Atmospheric interference
Acceleration in zero gravity
Relative motion between observers at high speeds
None
What is the Planck length thought to represent?
The smallest meaningful length in physics
The radius of a proton
The length of a light pulse
The wavelength of cosmic radiation
None
What does the cosmological constant represent in Einstein's field equations?
Gravitational pull of stars
Energy density of empty space (vacuum energy)
Mass of black holes
Speed of cosmic expansion
None
What is the current best estimate for the age of the universe?
9.7 billion years
7.2 billion years
13.8 billion years
20.4 billion years
None
What phenomenon occurs when light moves away from a gravitational field?
Photon splitting
Gravitational redshift
Doppler compression
Lensing reflection
None
What is the theoretical limit beyond which no information can escape a black hole?
The accretion disk
The Hawking boundary
The event horizon
The singularity core
None
Which force is considered the weakest but has infinite range?
Gravitational force
Electromagnetic force
Strong nuclear force
Weak nuclear force
None
According to quantum field theory, what mediates the electromagnetic force?
Gravitons
Higgs bosons
Photons
Gluons
None
What is the primary evidence for the existence of dark matter?
Radiation detected from distant galaxies
Gravitational effects on visible matter and galaxy rotation curves
Magnetic fields in galaxy clusters
Fluctuations in background neutrino levels
None
Which cosmic event is thought to have produced the first elements in the universe?
Cosmic inflation
Big Bang nucleosynthesis
Supernova explosions
Neutron star collisions
None
Time's up
