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Geo vs. Helio
Astronomy Asterisk
100
Who were the members of the A-Team?
Anaximander, Anaximenes, Anaxagoras
100
What is the order of the planets in our solar system?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
100
What are Newton’s three laws of motion?
1) An obj. in motion will stay in motion (2) F = ma (3) For every action, there is an equal and opposite reaction
100
What is the definition of a Geocentric versus a Heliocentric solar systems?
Geocentric: Earth Centered Heliocentric: Sun Centered
100
What is the unit of measure established by the distance btwn the Earth and Sun? Who proposed it?
An AU (astronomical Unit) - Copernicus
200
Which astronomer is responsible for proposing our current model of planetary motion?
Kepler
200
Which planet in our solar system is the hottest and why?
Venus. B/c of the thick atmosphere
200
What three pieces of information do you need to figure out acceleration?
Initial Speed, Final Speed, Time
200
Which astronomer first proposed the geocentric model of the solar system and the three “rules” we’d follow for nearly 1400 years?
Ptolemy BONUS: What are the three rule? All planets are perfect spheres, rotate in perfect circles, and at constant, same speed
200
The Sun is primarily made up of what elements?
Hydrogen and Helium
300
Who had the best eyesight in the history of astronomy and took detailed observations of planetary motion?
Tycho Brahe
300
The shape of planetary orbits is what?
Elliptical
300
How does Newton explain the behavior of the moon using gravity and inertia?
Forward movement (Inertia) and downward pull (gravity) keep moon moving in curved parallel BONUS: What type of force does this explain? (Centripetal)
300
Which astronomer first proposed a heliocentric solar system?
Copernicus
300
What is the difference between a rotation and a revolution?
Rotation turns in a circle on itself, Revolution revolves, or turns, around another object
400
What model for planetary motion did Ptolemy propose?
Geocentric w/ Epicycles
400
What is the hypothesis for how Earth’s moon was formed called?
Giant Impact Hypothesis
400
What is the difference between Mass and Weight?
Mass deals with the quantity of matter; weight can vary depending on gravity
400
What is an epicycle and what aspect of the geocentric model did it explain?
Revolving in a small circle in orbit; Retrograde Motion
400
Complete the following Scientific Notation problem:
4.44 x 10 ^2
500
Which astronomer first observed other bodies orbiting objects in our solar system to confirm a heliocentric model?
Galileo
500
What is the largest moon in our solar system?
Ganymede
500
What is Corey’s velocity if he hikes 7 miles North in 4 hours?
Velocity = 7miles/4hours =1.75m/h North
500
What model for the solar system did Tycho Brahe propose?
The Earth at the center, then the Sun with all other planets rotating around the Sun
500
How can retrograde motion be explained by Parallax Shift?
It helps us understand that the stars or planets aren’t moving as they appear, but our perspective is changing