Drag and drop the words into the correct locations.(2 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
The Copernican model of the solar system was a Response area model in which Earth Response area. Planets Response area, and the stars
Response area revolved around the sun. The Copernican model was a revolutionary idea that challenged the prevailing belief that Earth was the center of the universe. Instead, it proposed that Earth and the other planets orbit the sun. This model was a major shift in understanding our place in the universe and laid the foundation for our modern understanding of the solar system.
were fixed to an outermost sphere
heliocentric
travelled along a circular path
was just another planet
floated in outer space
geocentric
The Copernican model of the solar system was a heliocentric model in which Earth was just another planet. Planets traveled along a circular path around the sun, and the stars floated in outer space. This model challenged the geocentric belief that Earth was fixed to an outermost sphere and positioned at the center of the universe.
Which statement summarizes Kepler's First Law of Planetary Motion?(1 point)
Responses
Planets in the solar system revolve around the sun.
Planets in the solar system revolve around the sun.
Planets move fastest while Earth is at perihelion.
Planets move fastest while Earth is at perihelion.
Planets revolve around the sun in elliptical orbits.
Planets revolve around the sun in elliptical orbits.
Planets closest to the sun move faster in their orbits than those farther away.
Planets revolve around the sun in elliptical orbits.
Which statements about geocentric model and heliocentric model are true? Select the two correct answers.(1 point)
Responses
They both are models of the solar system.
They both are models of the solar system.
They both show the position of Earth relative to the Sun.
They both show the position of Earth relative to the Sun.
They both show Earth at the center of the solar system.
They both show Earth at the center of the solar system.
They both show the Sun at the center of the solar system.
They both show the position of Earth relative to the Sun.
They both are models of the solar system.
How does Kepler’s third law compare the periods and orbital radii of two planets within a solar system?(1 point)
Responses
The square of the ratio of the periods equals the ratio of the radii.
The square of the ratio of the periods equals the ratio of the radii.
The square of the ratio of the periods equals the cube of the ratio of the radii.
The square of the ratio of the periods equals the cube of the ratio of the radii.
The cube of the ratio of the periods equals the square of the ratio of the radii.
The cube of the ratio of the periods equals the square of the ratio of the radii.
The ratio of the periods equals the square of the ratio of the radii.
The square of the ratio of the periods equals the cube of the ratio of the radii.
Which statement describes the area swept out by a line between a planet and the sun at equal times as the planet moves along its orbit?(1 point)
Responses
It increases as the planet moves closer to the sun.
It increases as the planet moves closer to the sun.
It changes shape but always remains constant.
It changes shape but always remains constant.
It decreases as the planet moves closer to the sun.
It decreases as the planet moves closer to the sun.
It is proportional to the distance between the sun and the planet.
It changes shape but always remains constant.
For a planet orbiting the sun, rp
is the distance from the sun to the perihelion and ra
is the distance from the sun to the aphelion. What is a planet’s orbital eccentricity if rp is equal to 0.45ra
?(1 point)
Responses
1.45
1.45
0.38
0.38
0.55
0.55
2.64
0.55
Which of the following is the best definition of Newton's theory of universal gravitation?(1 point)
Responses
Every object is attracted to the Earth with a force that increases with increasing mass and distance.
Every object is attracted to the Earth with a force that increases with increasing mass and distance.
Every object attracts every other object in the universe, with a force that increases as the objects' masses increase and the distance between them decreases.
Every object attracts every other object in the universe, with a force that increases as the objects' masses increase and the distance between them decreases.
Every object is pulled downward with a force that increases as the height from which an object is dropped increases.
Every object is pulled downward with a force that increases as the height from which an object is dropped increases.
Every object attracts every other object in the universe, with a force that increases as the objects' masses decrease and the distance between them increases.
Every object attracts every other object in the universe, with a force that increases as the objects' masses increase and the distance between them decreases.
Where is the sun located on Earth’s elliptical orbit?(1 point)
Responses
at the center of the two foci
at the center of the two foci
at a focus
at a focus
at the aphelium
at the aphelium
at the perihelium
at a focus
Which of these can happen to objects in the solar system that do not have the momentum to maintain a stable orbit around the sun? Select the two correct answers.(1 point)
Responses
They can follow erratic orbits that take on different shapes.
They can follow erratic orbits that take on different shapes.
They can swing around the sun and be ejected outward into space.
They can swing around the sun and be ejected outward into space.
They can fall into circular orbits.
They can fall into circular orbits.
They can spiral into the sun.
They can follow erratic orbits that take on different shapes.
They can swing around the sun and be ejected outward into space.
A satellite orbiting Earth at an orbital radius r has a velocity v. Which represents the velocity if the satellite is moved to an orbital radius of 4r?(1 point)
Responses
12v
1 half v
2v
2 v
4v
4 v
14v
The correct response is 2v.
Why was the geocentric model of the solar system accepted by scientists for many years? Select the two correct answers.(1 point)
Responses
Observations with telescopes confirmed the predictions made using the model.
Observations with telescopes confirmed the predictions made using the model.
The model described the solar system correctly.
The model described the solar system correctly.
Suitable technology was not available to disprove the model.
Suitable technology was not available to disprove the model.
The model accurately predicted the movements of the planets.
Suitable technology was not available to disprove the model.
The model accurately predicted the movements of the planets.