Round 2

Which curves provide evidence for the existence of dark matter?

• Rotation curves

• Elliptical curves

• Spiral curves

• Gravitational curves

What is one hypothesized particle that dark matter could be composed of?

• Photons

• Axions

• Electrons

• Protons

Which of the following is a property of dark matter?

• Emits electromagnetic radiation

• Does not interact with light

• Visible to telescopes

• Found only in black holes

Which term describes the bending of light by massive objects, suggesting dark matter's presence?

• Redshift

• Lensing

• Diffraction

• Refraction

What does the cosmic microwave background (CMB) help scientists study?

(a)  

What is the acronym for Weakly Interacting Massive Particles?

(a)  

What percentage of the universe’s matter is dark matter?

(a)  

Axions are one type of (a)   particle hypothesized to make up dark matter.

Dark matter is invisible because it does not emit or absorb (a)   .

The outer regions of galaxies rotate (a)   than expected due to dark matter.