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