Dark Energy

What is the challenge with understanding dark matter and dark energy?

• They do not exist

• They are fully understood

• We know how they behave but not what they are

• We know what they are but not how they behave

A force that speeds up the expansion of the universe is called

• supernova

• gravity

• dark energy

• dark matter

What percent of the universe is dark energy

• 73%

• 23%

• 4%

• 90%

It is now theorized that dark ___________ speeds up the espansion of the universe and dark _________ slows it down.

• matter, energy

• energy, matter

• gravity, energy

• gravity, matter

When we make a "budget of stuff" in the cosmos, what percentage is made of stuff we can't directly see?

• 5%

• 27%

• 68%

• 95%

Tags

NGSS.HS-ESS1-2

What takes up almost 70% of all the mass energy in the entire cosmos, completely dominating everything else?

• Anti-Matter

• Normal Matter

• Dark Matter

• Dark Energy

What did the team behind the PANTHEON+ study find the universe is composed of?

• 50% dark energy, 50% dark matter

• 66.2% dark energy, 33.8% dark matter and normal matter

• 80% dark matter, 20% normal matter

• 90% dark energy, 10% dark matter

What is dark energy believed to be responsible for in the universe?

• Slowing down the expansion of the universe

• Speeding up the expansion of the universe

• Creating stars

• Destroying galaxies

Which of the following is a characteristic of dark energy?

• It is visible through telescopes

• It interacts with electromagnetic forces

• It has a repulsive effect on the universe

• It is composed of atoms

What percentage of the universe is thought to be made up of dark energy?

• 27%

• 68%

• 5%

• 95%