Universe, Plant Motion & Season Test Flashcards Preview

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Flashcards in Universe, Plant Motion & Season Test Deck (14):
1

What cases stars to cluster not galaxies?

Gravity

2

What s a group of planets, asteroids and comets and the star that they surround called?

Solar system

3

What is the name of our galaxy and what is its shape?

The Milky Way
Spiral

4

What is the theory about how our solar system formed?

The Big Bang Theory

5

Put these in order from largest to smallest

Solar system
Earth
Universe
Galaxy

Universe, Galaxy, solar system, earth

6

Why can't we see the shape of the Milky Way?

Earth is located in one of its arms

7

Day and night is caused by earths spinning on its axis called __________.

Rotation

8

The earth travels around the sun in a path called an __________.

Orbit

9

The motion of a smaller object orbiting around a larger object s called __________.

Revolution

10

Vernal means __________.

Spring

11

Autumnal means __________.

Fall

12

What is the force that attracts all objects toward each other?

Gravity

13

An ____________ is used to measure distances in the solar system.

Astronomical unit (AU)

14

What is a galaxy?

Clusters of billions of stars