Understanding the Universe: Dark Matter and Dark Energy

What percentage of the universe is considered invisible?

• 95%

• 75%

• 100%

• 50%

What is the term used for the mysterious substance that makes up 85% of all matter in the universe?

• Nonbaryonic Matter

• Baryonic Matter

• Dark Matter

• Dark Energy

Why can't we see dark matter?

• It is hidden behind stars

• It doesn't interact with light

• It is too far away

• It is too small

What is the most prevalent theory about the composition of dark matter?

• It is made of dark energy

• It is made of antimatter

• It is made of baryonic matter

• It is made of nonbaryonic matter

Who discovered that the universe is expanding?

• Stephen Hawking

• Albert Einstein

• Isaac Newton

• Edwin Hubble

What phenomenon did Hubble observe that indicated galaxies were moving away from us?

• Cosmic microwave background

• Gravitational lensing

• Redshift

• Blueshift

What did the studies in 1998 reveal about the universe's expansion?

• It is shrinking

• It is slowing down

• It is static

• It is accelerating

What is the term for the mysterious force causing the universe to expand faster?

• Gravitational Force

• Electromagnetic Force

• Dark Matter

• Dark Energy

What did Einstein introduce to explain a static universe?

• Quantum Mechanics

• String Theory

• Theory of Relativity

• Cosmological Constant

What role does dark matter play in the universe?

• It causes the universe to expand

• It is the glue that holds galaxies together

• It creates stars

• It is responsible for black holes