WorksheetsUnderstanding the Universe
Total questions: 15
Worksheet time: 11mins
What theory explains how the universe began?
Nebular Theory
Big Bang Theory
Galactic Explosion
Solar Formation
What is one key idea of the Big Bang Theory?
The universe has always stayed the same
The universe started small and is now shrinking
The universe started from a dense point and expanded
The universe was created by a black hole
What is meant by the "expansion of the universe"?
Planets are getting bigger
The Sun is expanding
Galaxies are moving away from each other
Stars are exploding
Which theory describes how the universe might end by freezing slowly?
Big Crunch
Big Chill
Big Pop
Heat Bomb
What is parallax used for in space?
Measuring heat of stars
Finding galaxy colors
Measuring star distance by shift in position
Predicting meteor showers
Which unit is used to measure distances to nearby stars?
Kilometer
Astronomical Unit
Light-year
Parsec
How far is 1 light-year approximately?
150 million km
3.26 km
9.46 trillion km
1 billion km
What type of galaxy is the Milky Way?
Elliptical
Irregular
Spiral
Lenticular
What is common in elliptical galaxies?
Bright spiral arms
Young blue stars
Very little gas and old stars
Ring shapes
What kind of galaxy has no fixed shape?
Spiral
Irregular
Barred Spiral
Elliptical
What holds the gas and stars together in a galaxy?
Wind
Water
Gravity
Magnetism
What is a nebula?
A small planet
A dying star
A cloud of gas and dust in space
A burning meteor
Which type of nebula reflects nearby starlight?
Emission
Dark
Reflection
Planetary
What is a star mostly made of?
Iron
Hydrogen and helium
Oxygen and carbon
Nitrogen
What are constellations used for today?
To measure distance
To name stars and meteor showers
To move satellites
To travel in space
