Question

What shape is the moon's orbit around Earth?

a spiral

an ellipse that is elongated

a circle

an ellipse that is almost circular
Answer
For which project would knowledge of Kepler's laws prove most useful?

calculating the mass of Earth

measuring the distance between Earth and the moon

determining the structure of the solar system's planets

putting a communications satellite in Earth orbit
Answer
A line between a planet and the sun sweeps out two equal areas at different places as it moves along its orbit. Which factor remains constant as this happens?

the distance the planet moves along its orbit while it sweeps out the area

the distance from the sun to the planet while it sweeps out the areas

the planet’s speed as it sweeps out the areas

the time required to sweep out the areas
Answer
Which did Kepler notice about planetary motion that caused him to propose Kepler’s first law of orbital motion?

The planets have circular orbits.

The distance between Mars and the sun is constant.

The distance to the sun varies.

Most planets have highly elliptical orbits.
Answer
Which is a feature of Copernicus's model of the solar system?

The planets move in perfect circles.

All planets orbit the Sun at the same speed.

The outer planets move in epicycles.

Earth is fixed to a crystalline sphere.
Answer
. Kepler's second law of planetary motion leads to the fact that when a planet is closest to the sun it moves faster in its orbit than when it is farther away.

True

False
Answer
Which of the following statements about Newton's theory of universal gravitation is true?

Gravitational force increases as the distance between objects increases.

Gravitational force increases as mass of objects decreases.

Gravitational force increases as the mass of objects increases.

The theory applies only to objects on Earth.
Answer
Which statements about the geocentric model is false?

It shows the orbits of the planets as circular.

It shows Earth at the center of the solar system.

It shows the Sun at the center of the solar system.
Answer
An asteroid approaches Jupiter and is slung around into a new trajectory across the solar system. Which of the following is possible?

The asteroid slows down as it passes around Jupiter.

The asteroid continues out of the solar system.

The asteroid adopts an unusual orbit around the sun, such as an egg shape.

The asteroid falls into an irregular orbit around Jupiter.
Answered by GPT 3.5
The shape of the moon's orbit around Earth is an ellipse that is almost circular.
Answered by GPT 3.5
Determining the structure of the solar system's planets would most likely make use of knowledge of Kepler's laws.
Answered by GPT 3.5
The planet's speed as it sweeps out the areas remains constant.
Answered by GPT 3.5
Kepler noticed that most planets have highly elliptical orbits, which led him to propose Kepler's first law of orbital motion.
Answered by GPT 3.5
A feature of Copernicus's model of the solar system is that the planets move in perfect circles.
Answered by GPT 3.5
True. Kepler's second law of planetary motion, also known as the Law of Equal Areas, states that a planet sweeps out equal areas in equal time intervals. This means that when a planet is closer to the sun (perihelion), it covers a larger distance in its orbit in a given time period, resulting in faster motion. Conversely, when it is farther away from the sun (aphelion), the distance covered in the same time interval is smaller, leading to slower motion.
Answered by GPT 3.5
The true statement about Newton's theory of universal gravitation is: Gravitational force increases as the mass of objects increases.
Answered by GPT 3.5
The false statement about the geocentric model is: It shows the Sun at the center of the solar system.
Answered by GPT 3.5
All of the given options are possible when an asteroid approaches Jupiter and is slung around into a new trajectory across the solar system.