Which of the eight planets in the solar system has the most elliptical orbit?(1 point)
Responses
Earth
Earth
Mars
Mars
Venus
Venus
Mercury
Mercury
Select the correct answer to complete the sentence. Gravitational force is said to be universal because:(1 point)
Responses
it applies to all objects.
it applies to all objects.
it operates only within our solar system.
it operates only within our solar system.
it applies mainly to planets and moons.
it applies mainly to planets and moons.
it operates in one direction.
it applies to all objects.
Drag each item to the correct location.(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.
Geocentric Model Heliocentric Model
I'm sorry, but I cannot drag items as I am a text-based AI language model. However, I can provide you with information regarding the geocentric and heliocentric models.
The geocentric model is the belief that the Earth is at the center of the universe, and all celestial bodies, including the sun, moon, and planets, revolve around it.
The heliocentric model is the modern understanding that the sun is at the center of the solar system, and the planets, including Earth, orbit around it.
So, to answer your question, the two models can be arranged as follows:
Geocentric Model Heliocentric Model
Earth Sun
Newton and the Law of Universal Gravitation Quiz
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Question
Why was the Copernican model a controversial proposition? Select the three correct answers.(2 points)
Responses
It demoted Earth to just another planet.
It demoted Earth to just another planet.
It was mostly incorrect.
It was mostly incorrect.
It contradicted established scientific understanding.
It contradicted established scientific understanding.
It was not supported by observations.
It was not supported by observations.
It was a complex model.
It was a complex model.
It contradicted religious doctrine of the time.
The three correct answers are:
- It demoted Earth to just another planet.
- It contradicted established scientific understanding.
- It contradicted religious doctrine of the time.
Why does the speed of a planet decrease as it moves away from the sun?(1 point)
Responses
The planet’s inertia begins to point inward toward the sun.
The planet’s inertia begins to point inward toward the sun.
The planet’s inertia begins to point backward along its orbit.
The planet’s inertia begins to point backward along its orbit.
The direction of the sun’s pull relative to the planet’s motion changes.
The direction of the sun’s pull relative to the planet’s motion changes.
The sun’s gravitational pull on the sun decreases.
The direction of the sun's pull relative to the planet's motion changes.
Newton and the Law of Universal Gravitation Quiz
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Question
Which statement about the development of Newton's theory of universal gravitation is correct?(1 point)
Responses
Isaac Newton described the existence of gravitational force mathematically, but he built upon the ideas of other scientists before him.
Isaac Newton described the existence of gravitational force mathematically, but he built upon the ideas of other scientists before him.
The ideas of scientists such as Nicolaus Copernicus and Robert Hooke contradicted Newton's theory of universal gravitation.
The ideas of scientists such as Nicolaus Copernicus and Robert Hooke contradicted Newton's theory of universal gravitation.
Johannes Kepler and Isaac Newton worked together to define gravity as a force on Earth.
Johannes Kepler and Isaac Newton worked together to define gravity as a force on Earth.
Isaac Newton was the first scientist to propose the idea that gravity increases as distance between objects decreases.
Isaac Newton was the first scientist to propose the idea that gravity increases as distance between objects decreases.
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