Space Practice Quiz - Lessons 1

What holds a collection of stars together?

• Gravity

• Magnetism

• Friction

• Electricity

What is a characteristic of a planet's orbit?

• Clear of debris

• Filled with asteroids

• Random

• Elliptical

What is a meteorite?

• A piece of rock from space

• A burning rock in the atmosphere

• A rock that has landed on Earth

• A type of comet

What are galaxies primarily composed of?

• Stars, gas, and dust

• Water, soil, and plants

• Ice, metal, and rock

• Light, sound, and energy

Which of the following is NOT a type of galaxy?

• Spiral

• Elliptical

• Irregular

• Circular

What causes a comet's tail to form?

• The comet's speed

• The sun's heat

• The Earth's gravity

• The moon's light

What is the term for the study of the universe's expansion from a small, hot state?

• The Big Bang Theory

• The Steady State Theory

• The Oscillating Universe Theory

• The Multiverse Theory

What is the electromagnetic spectrum used to support?

• The Big Bang Theory

• The Theory of Relativity

• Quantum Mechanics

• String Theory

What is the characteristic of each type of light in the electromagnetic spectrum?

• Wavelength

• Mass

• Volume

• Density

What is the primary evidence for the expansion of the universe?

• Blue-shifting

• Red-shifting

• Green-shifting

• Yellow-shifting