Modern Astronomers and Planetary Motion Review

Modern Astronomers and Planetary Motion Review

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Created by

James Stasky

Other

11th Grade

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28 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Newton's Universal Law of Gravity states that force is greatly impacted by mass of the objects and their distance from each other. Which of the following best explains this effect using the formula?

The force increases with the square of the distance between objects.

The force decreases with the square of the distance between objects.

The force is independent of the mass of the objects.

The force is directly proportional to the distance between objects.

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Match the accomplishment/law/theory to the appropriate scientist. A³ = p², A=distance, P= orbital period

A Copernicus

B Hubble

C Newton

D Kepler

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Copernicus

A Reintroduced the heliocentric model; Established the Copernican Revolution

B Invented the telescope and named Jupiter’s 4 moons.

C D³ = (m₁ + m₂)*p² and F=G(mass₁ x mass₂/distance²

D D³ = p².

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Italian astronomer Galileo Galilei discovered the four moons on Jupiter: Io, Europa, Ganymede, and Callisto. Of these four moons, Europa revealed that long linear features on its surface may indicate tidal or tectonic activity. What relevance does this have towards future findings towards habitable zones?

A young crust

B highly reflective surface

C plumes emanating beneath the crust

D all of the above

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

He is most famous for his three laws of planetary motion:

A Tycho Brahe

B Johannes Kepler

C Isaac Newton

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

An ellipse with an eccentricity of zero is

equal to that of Pluto

a circle

similar to that of Mars

a really flat, elongated ellipse

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

As you increase the distance of the foci points, what happens to the eccentricity of the ellipse?

it increases

it decreases

it stays the same

it is closer to zero

8.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

When a planet, in its orbit, is closer to the sun, it:

Moves slower than average.

Reflects the sunlight less than average.

Feels less than average gravitational pull.

Moves faster on average.

9.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In Newton’s Law of Gravity, the force of gravity increases as the:

mass decreases

distance increases

mass increases

10.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How did Kepler's first law of planetary motion alter the Copernican system?

It changed the perfect circles to ellipses.

It added epicycles to the perfect circles.

It placed the Earth at one focus of each orbit.

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