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Assessment
What is Newton's first law of motion primarily concerned with?
The effects of forces on motion.
The gravitational attraction between masses.
The concept of inertia.
The acceleration of objects.
Which of the following laws is crucial in explaining elliptical orbits in the heliocentric model?
Newton's law of universal gravitation.
Newton's second law of motion.
Newton's third law of motion.
Kepler's first law of planetary motion.
In the context of heliocentrism, what did Newton's law of gravity help to confirm?
The Sun is at the center of the solar system.
The orbits of planets are circular.
All celestial bodies are stationary.
Gravity affects motion only on Earth.
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