Topic 9 Lesson 1 Movements in Space

which early astronomer was born in 476 CE in present day India

Aryabhata

who said “the moon and the planets shine because they reflect light from the sun”

aryabhata

what was the only tool aryabhata had

his eyes

what is the largest and brightest object in earth’s night sky

the moon

______- a body that orbits a planet

satellite

what is earth’s only natural satellite

the moon

____-a giant ball of superheated gas/plasma made of hydrogen and helium

star

_____- an object that orbits the sun, large enough to have become rounded by its own gravity and has cleared its orbit of debris

planet

how many planets do we have in our solar system

8 planets

____- a streak of light made when a small piece of rock or ice burns up as it enters earth’s atmosphere

meteor

_____-small piece of rock or ice

meteoroid

____- a cold mixture of dust and ice that makes a long trail of light as it nears the sun

comet

what is the most famous comet

Halley’s Comet

how often does Halley’s Comet appear

every 75 years

________- a pattern or group of stars that people imagine represents a figure, animal, or object

constellations

in ancient roman and greek cultures, constellations went along with ______

mythologies

how many constellations do we have

88 constellations

what are the constellations named for

people/animals from Greek Myths

what do the position of objects in the sky depend on

the motions of earth

from which directions do stars usually appear to move from

east to west

what is movement in the sky caused by

earth’s rotating

stars we see will vary from _______

season to season

seasonal changes are also caused by earth’s _____/_____

revolution/orbit

what is the narrow band planets appear to move through in the sky

zodiac

some planets are visible ______

all night long

which planets can be seen after sunset

mars, jupiter, and saturn

which planets can only be seen in the evening and morning

venus and merucry

how many solar system models do we have

two models

ancient peoples noticed ____ seemed relative to one another

stars

who thought the earth was the center of our universe with planets and stars circling it

aristotle

_______- an earth centered model

geocentric

who continued aristotle’s model

ptolemy

describe ptolemy’s model

the planets made small circles as they moved along their orbits

what are the small circles planets make called

epicyles

the _____ model explained motions in the sky

geocentric

how many years after his death was ptolemy’s model accepted

1500 years

who developed a sun centered model

aristarchus

_______- a sun centered model

heliocentric

which of the solar system models was not well received

heliocentric model

which 4 scientists worked to expand and prove the heliocentric model

copernicus, brahe, kepler, galileo

which of the 4 scientists said earth’s rotation/revolution around the sun explained movements

copernicus

which of the 4 scientists was much more accurate in their research and began to observe that planet’s did not move in a circle around the sun

brahe

which of the 4 scientists was brahe’s assistant and proved that the shape of the planets orbit is an ellipse and not a circle

kepler

which of the 4 scientists convinced others that the heliocentric model was correct

galileo

what did galileo use/make to discover moons orbiting jupiter

telescope

what are the moons of jupiter known as

galilean moons

who did galileo agree with that the sun was the center of our solar system

copernicus

what proved that not everything in the sky travels around earth

the galilean moons

what did galileo discover about venus

it goes through planets similar to the moon’s phases

which model did galileo reason that couldn’t be true

geocentric model