Select the correct answer from the list -
As a planet draws away from the sun in its orbit, the force between the sun and the planet - (increases, decreases, or remains the same?) and the planet's speed - (increases, remains the same, or decreases?)
As a planet draws away from the sun in its orbit, the force between the sun and the planet - decreases, and the planet's speed - decreases.
Which area of astronomy does Kepler's laws address?(1 point)
Responses
The movement of asteroids in the solar system.
The movement of asteroids in the solar system.
The movement of stars within galaxies.
The movement of stars within galaxies.
The movement of planets within the solar system.
The movement of planets within the solar system.
The movement of the sun in relation to the planets.
The movement of planets within the solar system.
Select the correct answer from the list.(1 point)
When an object slows down and deviates from its expected orbit, this indicates that it is being (pulled or pushed?) by (gravitational, frictional, propulsive, or magnetic?) force due to another object.
When an object slows down and deviates from its expected orbit, this indicates that it is being pulled by gravitational force due to another object.
The formulation of Kepler's Laws of Planetary Motion relied on the data and observations of which scientist other than Kepler? (1 point)
Responses
Isaac Newton
Isaac Newton
Nicolaus Copernicus
Nicolaus Copernicus
Tycho Brahe
Tycho Brahe
Galileo Galilei
Tycho Brahe
Which of these describe the speed of a moon as it draws closer to the planet it orbits?(1 point)
Responses
The speed of the moon remains constant.
The speed of the moon remains constant.
The speed of the moon creates an elliptical pattern.
The speed of the moon creates an elliptical pattern.
The speed of the moon increases.
The speed of the moon increases.
The speed of the moon decreases.
The speed of the moon increases.
When a planet moves away from the sun in its orbit, the force between the sun and the planet decreases and the planet's speed decreases.
To understand this, we can use Newton's law of universal gravitation, which states that the force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. In this case, the two objects are the sun and the planet.
As the planet moves away from the sun, the distance between them increases. Since the force of gravity is inversely proportional to the square of the distance, the force between the sun and the planet decreases. This is because the gravitational attraction weakens as the distance between them increases.
Additionally, according to Newton's second law of motion, the net force acting on an object is equal to the mass of the object multiplied by its acceleration. In the case of a planet moving in its orbit around the sun, this net force is provided by the gravitational force between the sun and the planet. As the force between them decreases, the planet's acceleration decreases as well, resulting in a decrease in its speed.
Therefore, as a planet draws away from the sun in its orbit, the force between the sun and the planet decreases, and the planet's speed decreases.