The speed at which any planet moves through space is constantly changing. In a perfectly circular orbit, the orbital radius of the planet would be constant and therefore so would be its observed angular velocity. In elliptical orbits, the velocity varies. In elliptical orbits, the orbital radius of the satellite will vary and therefore so will its velocity. The planet travels "faster" when closer to the Sun, then "slower" at a more distant radius. According to Newton's 2nd Law, what is the underlying force behind this change in velocity? Kepler's Law

The speed at which any planet moves through space is constantly changing. In a perfectly circular orbit, the orbital radius of the planet would be constant and therefore so would be its observed angular velocity. In elliptical orbits, the velocity varies. In elliptical orbits, the orbital radius of the satellite will vary and therefore so will its velocity. The planet travels "faster" when closer to the Sun, then "slower"  at a more distant radius.   According to Newton's 2nd Law, what is the underlying force behind this change in velocity?
  • Friction
  • Mass
556 students attemted this question.

Explanation

No Explanation Available.

Share this question with friends

Similar Questions

  1. Earth's orbital radius is 1.5 x 10^11 m and it orbits the Sun in 1 year. If Mercury's orbital radius is 5.79 x 10^10 m, calculate the time taken for it to orbit the Sun.Radius orbit Bumi ialah 1.5 x 10^11 m dan Bumi mengelilingi Matahari dalam tempoh 1 tahun. Jika radius orbit Utarid ialah 5.79 x 10^10 m, kira masa yang diambil untuk mengorbit Matahari.

  2. When Earth orbits around the sun, it slows down when it is close to the sun. It speeds up its orbit when it is further from the sun. This is because the sun's gravity is stronger when you are closer to it.

  3. The period of a satellite in a circular orbit of radius R is T. The period of another satellite in circular orbit of radius 4R is

  4. The period of the Moon's orbit is 27.0 days. The radius of the Moon's orbit is 3.8 ×1083.8\ \times10^83.8 ×108 m. The period of a geostationary satellite is 1 day. What is the radius of the geostationary satellite's orbit.

  5. Kepler’s 3rd law states the square of the orbital period is proportional to the cube of the orbital radius. (T2=r3)If a planet's orbital radius is doubled, what happens to the length of a year on that planet?

  6. When a planet orbits the Sun, one of the foci of the elliptical orbit is

  7. If r represents the radius of the orbit of a satellite of mass m moving round a planet of mass M the velocity of the satellite is given by

  8. A kine drawn from a planet to the Sun always sweeps over equal areas in equal intervals of time When the planet moves further from the sun, the planet will move

  9. In order for a satellite to orbit in a higher orbit, what must be true about its speed

  10. The place where a planet is farthest away from the Sun in its orbit around the Sun is called the

  11. Consider the model of Kepler's 2nd Law. Each colored wedge represents the same time interval. Kepler states that the area of each wedge must be equal. According to this, what conclusions can you draw about the movement of any planet?

  12. The place where a planet is closest to the Sun as it orbits the Sun is called the

  13. Which of the following shows correctly the relationship between the period of orbit, T and radius of orbit, r, of a planet?

  14. Diagram shows the planet Saturn with its four satellites. R and T are orbital radius and orbital period of satellites respectively. Which of the following statements is true?

  15. Planets revolve around the sun in elliptical orbits

  16. The farther away a planet is from the sun, the _______ it takes it to orbit the sun once.

  17. The diagram below shows a moon revolving around a planet in an elliptical orbit. At which position is the moon traveling fastest?

  18. The orbital radius of Venus is 10.8×101010.8\times10^{10}10.8×1010 m . Its rotation period is 224.7 days. What is its orbital speed.

  19. Planets travel faster when they are closer to the sun.

  20. The distance of venus and Saturn from the sun are nearly 101110^{11^{ }}1011 m and 101210^{12}1012 m respectively. Assuming that they move in circular orbits, their periodic times would be in ratio of

Comments

Add Your Review

Your email address will not be published.

Subscribe to Newsletter!

Subscribe to get latest updates and information.