Astronomy Finals Review 2

Astronomers believe that the universe is approximately how old?

• almost 10 trillion years old

• almost 10 million years old

• almost 15,000 years old

• almost 15 billion years old

Tags

NGSS.HS-ESS1-2

Study of the evolution, shape, structure, and future of the universe is known as:

• spectroscopy

• universality

• cosmology

• quantum mechanics

The main piece of evidence that demonstrates that the universe is expanding is:

• blue shifting of distant galaxies

• red shifting of distant galaxies

• darkening of distant galaxies

• dissolving of distant galaxies

Tags

NGSS.HS-ESS1-2

"Inflation" of the early universe means that:

• protons expanded to the size of stars.

• there was a sudden increase in gravity.

• the number of galaxies grew exponentially.

• the universe increased dramatically in size.

Tags

NGSS.HS-ESS1-2

A repulsive force that counteracts gravity causing the universe to expand at an accelerating rate is:

• dark gravity

• dark atoms

• dark matter

• dark energy

Theory proposing that the universe began in a hot, dense, violent burst of matter and energy.

• oscillating universe theory

• steady state theory

• big bang theory

• big crunch theory

Tags

NGSS.HS-ESS1-2

The halting of the expanding universe by gravity, re-collapse, then process repeated describes

• big bang theory

• steady state theory

• oscillating - big crunch theory

• singularity theory

This group of astronomers believe that there is other intelligent life in the universe.

• Trekies

• Loners

• Men in Black

• Many Worlders

Estimates the number of civilizations in the cosmos or the odds of finding intelligent life.

• ILI - Intelligent Life Index

• Quantum Mechanics

• Drake Equation

• UFO Detector

Voyagers carried this object with sounds and images of the diversity of life-culture on Earth.

• golden album

• golden record

• golden CD

• golden DVD