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Foundations of Early Astronomy Review

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

Who discovered the Earth was shaped like a sphere?

a)

Aristotle

b)

Galileo

c)

Newton

d)

Plato

2.

Ptolemy discovered the apparent backward motion of planets called

a)
retrograde motion
b)
circular orbit
c)
elliptical path
d)
normal motion
3.

Retrograde motion occured because of the discovery of

a)
the elliptical orbits of planets
b)

the geocentric theory

c)

lunar phases on motion

d)

epicycles

4.

Who made the most precise measurements and locations of planets and stars?

a)
Isaac Newton
b)
Galileo Galilei
c)
Tycho Brahe
d)
Johannes Kepler
5.

Who was the first to say that Earth is a planet?

a)
Aristotle
b)
Galileo
c)
Copernicus
6.

What did Galileo create that led to many discoveries?

a)
the telescope
b)
the barometer
c)
the microscope
d)
the astrolabe
7.

What did Galileo discover after his invention?

a)
The rings of Saturn and the surface of Mars.
b)
The stars of the Milky Way and the comets of Halley.
c)
The gravity of Earth and the temperature of the Sun.
d)
The moons of Jupiter and the phases of Venus.
8.

Kepler explained motion of planets through

a)
Random paths and magnetic forces.
b)
Straight-line trajectories and inertia.
c)
Circular paths and gravitational pull.
d)

Elliptical orbits and 3 laws of planetary motion.

9.

Newton explained gravity through

a)
the law of universal gravitation
b)
the concept of buoyancy
c)
the principle of inertia
d)
the theory of relativity
10.

Theory of relativity is how ______________ explained gravity.

a)
Galileo
b)
Einstein
c)
Newton
d)
Hawking
11.

The law of universal gravitation states

a)
Masses attract each other only if they are in direct contact with one another.
b)
Every point mass attracts every other point mass with a force proportional to the product of their masses and inversely proportional to the square of the distance between them.
c)
Only large masses attract each other with a constant force regardless of distance.
d)
Every mass repels every other mass with a force proportional to their distance.
12.

Theory of relativity explains gravity as

a)
Gravity is explained as the curvature of spacetime caused by mass.
b)
Gravity is a constant force acting on all masses.
c)
Gravity is the result of electromagnetic interactions.
d)
Gravity is a force that pulls objects towards each other.
13.

Explain the difference between geocentric and heliocentric models of the universe.

a)
The geocentric model places the Earth at the center of the universe, while the heliocentric model places the sun at the center.
b)
The geocentric model suggests the sun revolves around the Earth, while the heliocentric model suggests the Earth revolves around the sun.
c)
The geocentric model includes planets orbiting the sun, while the heliocentric model includes stars orbiting the Earth.
d)
The geocentric model is based on a flat Earth, while the heliocentric model is based on a spherical Earth.
14.

Ptolemy believed in a _____________ model; and Copernicus believed in a ___________________ model.

a)
geometric; astronomical
b)
planetary; cosmic
c)
linear; circular
d)
geocentric; heliocentric
15.

What did Kepler contribute to make the heliocentric model better?

a)
Newton's theory of gravity.
b)
Galileo's telescope observations.
c)
Copernicus's original model.
d)

Kepler's laws of planetary motion. Especially, the 1st law which states Orbits are ellipses.

16.

Explain Alabama's contribution to space exploration.

a)
Alabama's contribution to space exploration includes the development of the Saturn V rocket at the Marshall Space Flight Center and ongoing aerospace research.
b)
Alabama is known for its contributions to oceanography and marine biology.
c)
The state played a key role in developing the Hubble Space Telescope in the 1990s.
d)
Alabama's main focus in space exploration was on satellite communications and GPS technology.
17.

Galileo's observation of Jupiter's moons orbiting Jupiter provided the strongest evidence for the heliocentric model.

a)

true

b)

false

18.

Whose data did Kepler use to propose the three laws of planetary motion?

a)
Johannes Gutenberg
b)
Galileo Galilei
c)
Isaac Newton
d)
Tycho Brahe
19.

Einstein's theory of relativity was important to astronomy because

a)

it revolutionized our understanding of gravity and the structure of the universe due to light bending around massive objects

b)
it confirmed the existence of black holes in the universe.
c)
it provided a new method for measuring time accurately.
d)
it explained the behavior of light in a vacuum.
20.

Reorder the following astronomers in the correct order.

a)

Aristotle, Ptolemy

b)

,Copernicus

c)

,Galileo, Brahe

d)

,Kepler, Newton

e)

,Einstein

1)
2)
3)
4)
5)

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