Tycho Brahe
The observatory built on an island for Tycho Brahe
Uraniborg
the source of Kepler's data
Tycho Brahe's records
A fireman turns on a water hose and is pushed backwards... which of Newton's Laws best describes this
Newton's 3rd Law
A rocket works by expelling hot gases downward with a large force, which propels the rocket upward.
Newton's 3rd Law
The astronomer who watched an apple fall and realized there must be a similar force causing the planets to move in an elliptical orbit around the sun
Sir Isaac Newton
The purpose of Tycho's "Castle of the Heavens"
to be an observatory and house scientists to work for Tycho
the law which states planets move in an elliptical orbit
Kepler's Law of Elliptical Orbits
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them
newton's 1st law
The sun exerts a gravitational force on Earth, and Earth exerts an equal force back on the sun. This demonstrates which of Newton's Laws?
Newton's 3rd Law: Every action force has an equal and opposite reaction force.
the astronomer who invented calculus and developed a theory of color and light
Isaac Newton
the object which led Tycho to stop believing that the heavens are unchanging
supernova
Kepler worked for this famous astronomer as a young man
Tycho Brahe
Two football players collide and the larger one knocks the smaller one over.
Newton's second law
A planet moves slower when further from the sun because what is weaker?
the force of gravity
The astronomer who had a model of the universe in which the sun orbits Earth and the other planets orbit the sun
Tycho Brahe
Tycho observed a/an __________ which had a path through the orbits of several planets. He realized the ancient theory of _________ spheres couldn't be correct.
comet; crystal
the law that states: an imaginary line drawn between the sun and a planet sweeps over equal areas in equal times
Kepler's Law of Areas
a change in speed or direction
acceleration
the law that says all objects exert a force on other objects
The Law of Universal Gravitation
Ptolemy
Two reasons why Tycho's data was more accurate than any astronomers' before him
larger instruments; more precise instruments; invention & use of accurate clocks; accounted for refraction
the law which uses math to show a relationship between a planet's average distance from the sun and its period
The Law of Periods
A shopping cart piled high with groceries is harder to get moving than an empty shopping cart
Newton's 2nd Law
Newton's 1st Law: an object in motion stays in motion in a straight line at a constant speed
The astronomer who wrote about his heliocentric theory in De Revolutionibus Erbium Coelestium
Copernicus