Kepler's Laws of Planetary Motion

Which astronomer’s observations of the planet Mars were used by Kepler to formulate his laws of planetary motion?

• Tycho Brahe

• Galileo Galilei

• Edwin Hubble

• Nicholas Copernicus

The diagram shows the orbit of a comet around the Sun. X marks the point at which the comet is furthest from the Sun. What is the name of point X?

• Aphelion

• Apogee

• Perigee

• Perihelion

Tags

NGSS.HS-ESS1-4

Which of the following statements is correct?

• A planet has its largest speed when it is close to aphelion.

• A planet has its largest speed when it is close to perihelion.

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NGSS.HS-ESS1-4

Which of the following has the largest eccentricity?

• A

• B

• C

• D

Tags

NGSS.HS-ESS1-4

Which planet below has the smallest variation in orbital speed?

• Earth

• Venus

• Jupiter

• Neptune

Tags

NGSS.HS-ESS1-4

Which is the correct formula relating orbital period (T) and mean radius (r)?

Tags

NGSS.HS-ESS1-4

Which statement below is correct?

• The greater a planet's distance from the Sun, the longer its orbital period.

• The greater a planet's distance from the Sun, the shorter its orbital period.

Tags

NGSS.HS-ESS1-4

The International Space Station orbits the Earth once every 90 minutes. How many minutes does it take the ISS to travel from apogee to perigee?

• 90

• 45

• 30

• 180

Tags

NGSS.HS-ESS1-4