Big Bang and History of Astronomy

What is gravity?

• a force of attraction between objects that is due to their masses

• an unbalanced force that makes objects move in an elliptical path

• the rotating cloud of gas and dust from which the sun and planets formed

• the point in the orbit of a planet at which the planet is farthest from the sun

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The diagram below shows several objects in space.

Which of these choices best identifies what the diagram shows?

• location of comets

• geocentric star system

• heliocentric solar system

• galaxy that is nearest to Earth

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Early astronomers created different models of the solar system. One model is shown in the diagram below. Which model of the solar system does this diagram illustrate?

• geocentric model

• heliocentric model

• Copernican model

• Aristarchan model

Tags

NGSS.MS-ESS1-1

Why do the stars appear to rotate around the sky?

• Because the Earth is spinning

• Because the stars are spinning

• Because you are dizzy

• They're not, it is an illusion

What was the ancient Greek answer to the question of why are the stars moving across the sky?

• They thought the stars were moving

• They thought the Earth was moving

• They didn't really notice it

• They thought the stars were a herd of turtles

What model did Copernicus and Kepler propose?

• The sun is the center of the universe not the earth

• The earth is the center of the universe not the sun

• The moon is the center of the universe

• There is a huge bowl with holes in it over the earth

Tags

NGSS.MS-ESS1-2

What did they realize the wandering objects in the sky were?

• planets

• lost turtles

• pulsars

• aliens

Tags

NGSS.MS-ESS1-3

What new technology did Galileo use to make his observations?

• Telescope

• Microscope

• Eyeglasses

• Mirrors

What do scientists do when new information doesn't fit their existing models?

• They adapt or change their model to fit the new information once they have confirmed it

• They ignore the new information

• They put their fingers in their ears and go lalalalala

• They immediately throw everything they know out the window

Tags

NGSS.HS-ESS2-2

What does the term heliocentric mean?

• helium centered

• earth centered

• sun centered

• space centered