Question

Copernicus's model of the solar system was not readily accepted at the time he presented it. Why?
Select the correct TWO responses
(1 point)
• People could feel the movement of the Earth.
• There was a lack of evidence.
• Religious beliefs at the time did not fit with his model.
• It was a geocentric model that was too complex.
Which of the following statements about Newton's theory of universal gravitation are FALSE.
Select the THREE correct answers.
(1 point)
• Gravitational force increases as the distance between object increases.
• Gravitational force increases as the mass of objects increases.
• The theory applies to all objects in the universe.
• Gravitational force increases as mass of objects decreases.
• The theory applies only to objects on Earth.
• Gravitational force increases as the distance between objects decreases.
Which TREE statements are correct features of Copernicus's model of the solar system? (1 point)
• The outer planets move in epicycles.
• The stars are fixed to an outer sphere.
• The Sun is at the center of the model.
• All planets orbit the Sun at the same speed.
• Earth is fixed to a crystalline sphere.
the plants move in perfect circles

Answer 1

### Copernicus's Model of the Solar System
**Not readily accepted due to the following reasons:**
1. **Religious beliefs at the time did not fit with his model.**
2. **There was a lack of evidence.**

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### Newton's Theory of Universal Gravitation
**The following statements are FALSE:**
1. **Gravitational force increases as the distance between objects increases.** (It actually decreases.)
2. **Gravitational force increases as mass of objects decreases.** (It actually increases as mass increases.)
3. **The theory applies only to objects on Earth.** (It applies to all objects in the universe.)

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### Features of Copernicus's Model of the Solar System
**The following three statements are correct features of Copernicus's model:**
1. **The Sun is at the center of the model.**
2. **The stars are fixed to an outer sphere.**
3. **The planets move in perfect circles.**

(Note: The statement "The outer planets move in epicycles" is more associated with Ptolemaic models, not Copernicus's heliocentric model specifically.)