Astronomers Review

Astronomers Review

Multiple Choice

What evidence did Galileo gather to help support the Heliocentric model?

• Moons of Jupiter

• Phases of Venus

• Sunspots

• All of the other answers are correct

Multiple Choice

According to Newton’s First Law of Motion, what will happen to a ball thrown in space, far enough away from the pull of any star or planet’s gravity?

• It will travel at the same speed and direction until it experiences a force

• It will naturally slow to a stop

• It will gradually accelerate to the speed of light

• It will stop immediately since nobody is pushing it

Multiple Choice

Which astronomer is best known for creating a complex model with planets revolving around the earth in smaller circles?

• Ptolemy

• Kepler

• Newton

• Einstein

Multiple Choice

The Danish nobleman who gathered a tremendous amount of astronomical data without the use of a telescope was

• Brahe

• Copernicus

• Ptolemy

• Kepler

Multiple Choice

Kepler’s First Law of Planetary Motion states that the sun is located where?

• In the exact center of Earth's orbit

• In the middle of an Epicycle

• At one focus of earth's elliptical orbit

• In orbit around the earth

Multiple Choice

According to the Greeks, the retrograde motion of the planets was explained by smaller circles those planets traveled around. Those circles are called

• Astrolabes

• Focuses

• Ellipses

• Epicycles

Multiple Choice

A model of the universe with the earth at the center is known as what?

• Egocentric

• Geocentric

• Heliocentric

• Ethnocentric

Multiple Choice

According to Special Relativity, as an object approaches the speed of light, observers will notice

• Time Dilation

• Length Contraction

• No definitive simultaneous events

• All of the other options will be observed

Multiple Choice

The actual shape of earth's orbit can best be described as...

• A perfect circle

• An extremely circular ellipse

• An oval ellipse

• An extremely flattened ellipse

Multiple Choice

Kepler’s First Law of Planetary Motion states that planets orbit in what geometric shape?

• Circles

• Ellipses

• Figure 8's

• Spirographs

Multiple Choice

What evidence did Copernicus have for his model of the Universe?

• Copernicus used a telescope to gather lots of scientific evidence

• Copernicus used the laws of physics to prove his model

• Copernicus had little to no scientific evidence, just math and a gut feeling

• All of the other options are correct

Multiple Choice

What German born scientist is best known for his Theory of Relativity, which is an important theory for explaining modern astronomy.

• Einstein

• Kepler

• Copernicus

• Brahe

Multiple Choice

According to Kepler’s Second Law of Planetary Motion, as an object gets farther from the sun, its speed will

• Increase

• Decrease

• Remain the same

• Impossible to determine

Multiple Choice

Kepler’s Third Law of Planetary Motion relates what two factors?

• Distance to the sun and length of year

• Spin speed and a planet's mass

• Radius of a planet and a planet's mass

• Length of year and a planet's mass

Multiple Choice

Which astronomer is known as the father of experimental science, and built his own telescope to gather evidence on the universe, supporting heliocentrism?

• Galileo

• Copernicus

• Kepler

• Brahe

Multiple Choice

According to Newton’s Law of Gravity

• Only the earth exerts a gravitational force on objects

• Only planets exert gravitational forces on objects

• Only planets and stars exert gravitational forces on objects

• Any two objects will exert gravitational forces on each other

Multiple Choice

A model of the universe with the sun at the center is known as what?

• Geocentric

• Heliocentric

• Egocentric

• Eurocentric

Multiple Choice

According to General Relativity, Gravity is actually

• A force transmitted instantly through space

• A warping of the fabric of spacetime

• A force generated by earth's acceleration around the sun

• A mistake