Ast - L 2-1 Observing the Solar System

The five points of light that the Greeks called planets are

• Mercury, Venus, Mars, Uranus, and Saturn
• Mercury, Mars, Saturn, Pluto, and Jupiter
• Mercury, Venus, Mars, Jupiter, and Saturn
• Mercury, Mars, Jupiter, Uranus, and Pluto

In the geocentric system,

• the milky way is revolving around the planets
• the Earth is at the center of the revolving planets
• the Sun is at the center of the revolving planets
• the moon is at the center of the revolving planets

Ptolemy thought the planets

• moved around the sun in a circular orbit
• moved in elliptical (oval) orbits
• moved around the moon in a certain pattern
• moved in little circles that moved on bigger circles

A heliocentric description of the solar system is based on the theory that 

• the planets move in elliptical(oval) orbits around the Earth
• the planets move in circular orbits around the Earth
• the planets move in elliptical orbits around the Sun
• the planets move in elliptical orbits around the moon.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Who developed the heliocentric explanation for the motion of the planets?

• Newton
• Copernicus
• Galileo
• Kepler

What were two observations that Galileo discovered that supported the heliocentric model?

• figured out gravity and that the Earth keeps pulling the Moon toward it
• Discovered the orbit of each planet is an Ellipse and that Brahe had a fake nose
• Saw four moons revolving around Jupiter and Venus goes through phases similar to those of Earth's moon
• observing the stars and watched the planets for 20 years

Which astronomer carefully observed the positions of the planets for 20 years of his life?

• Ptolemy
• Galileo
• Brahe
• Kepler

Which astronomer used Brahe's data to discover that each planet moved in an elongated circle / oval / ellipse? 

• Kepler
• Isaac Newton
• Galileo
• Copernicus

Tags

NGSS.MS-PS2-4

Whose ideas of the solar system are accepted today?

• Ptolemy
• The Greeks
• The Romans
• Copernicus

What is an ellipse?

• When the planets travel in an oval shaped orbit
• When the planets travel in a circular shaped orbit
• When the Moon blocks the Sun's light
• When the Earth's shadow falls on the moon

Tags

NGSS.MS-ESS1-1