Exploring Dark Energy and the Expansion of the Universe

What is the term used to describe the point where all space, time, matter, and energy were compressed into a single infinitely dense point?

• Event Horizon

• Neutron Star

• Singularity

• Black Hole

What was the unexpected discovery made by astronomers in the 1990s regarding the expansion of the Universe?

• The Universe is contracting

• The Universe's expansion is accelerating

• The Universe is shrinking

• The Universe is static

What is the mysterious entity that is believed to be causing the accelerated expansion of the Universe?

• Black Holes

• Dark Matter

• Dark Energy

• Antimatter

What is the term used to describe the overall curvature and shape of space on the largest scales?

• Geometry of the Universe

• Quantum Foam

• Gravitational Lensing

• Cosmological Constant

What happens to light as it travels through expanding space?

• Its wavelength gets shorter

• It remains unchanged

• It loses energy

• It gains energy

Tags

NGSS.HS-PS4-3

What is the radius of the observable Universe?

• 100 billion light years

• 45 billion light years

• 13.8 billion light years

• Infinite

What is the term used to describe the phenomenon where light loses energy and its wavelength gets longer as it travels through expanding space?

• Cosmological Redshift

• Photon Decay

• Gravitational Lensing

• Doppler Effect

Tags

NGSS.HS-ESS1-2

What is the ultimate fate of the Universe according to current understanding?

• It will collapse into a singularity

• It will oscillate between expansion and contraction

• It will expand forever

• It will remain static

What effect does dark energy have on the expansion of the Universe?

• It reverses the expansion

• It accelerates the expansion

• It has no effect

• It slows down the expansion

What happens to the observable Universe as space expands more rapidly every day?

• It gets larger

• It remains the same size

• It disappears completely

• It gets smaller

Tags

NGSS.HS-ESS1-2