15 of 20 Questions x Give Up? Resume Assignment Score: 88.1% Resources Feedback Press Esc to exit full screen Attempt 9 10 Question 100% 1 of co Attempts Correct Match the statements with the correct law of planetary motion. 11 Question 100% 1 of co Attempts Correct Macmillan Learning Kepler's first law Kepler's second law Kepler's third law 12 Question 80% 5 of co Attempts Correct A planet's semi-major axis is related to its Planets move in elliptical orbits. A line joining a planet and the Sun sweeps orbital period. 13 Question 100% out equal areas in equal times. 1 of co Attempts Correct The planets are held in orbit around the Sun by gravity. 14 Question 100% The Sun is located at one focus of a 1 of co Attempts Correct planet's orbit. Planets move the slowest at aphelion. Planets with larger orbits take more time to complete one orbit. 15 Question 0% 9 of co Attempts Answer Bank 16 Question 0% 3 of co Attempts 17 Question 95% 2 of co Attempts Correct Incorrect 18 Question 95% 2 of co Attempts Correct 19 Question 96.7% 2 of co Attempts Correct 20 Question 100% 1 of co Attempts CorrectResume 16 of 20 Questions Assignment Score: 88.1% Resources x Give Up? Feedback Press Esc to exit full screen 10 Question 100% Attempt 3 1 of co Attempts Correct 20 Astronomers discover an exoplanet, a planet orbiting a star other than the Sun, that has an orbital period of 2.50 Earth years in a 11 Question 100% circular orbit around its star, which has a measured mass of 3.40 x 1050 kg. 1 of co Attempts Correct @ Macmillan Learning 12 Question 80% Determine the radius r of the exoplanet's orbit. 5 of co Attempts Correct 1.654 x10 r = m 13 Question 100% Incorrect 1 of co Attempts Correct 14 Question 100% 1 of co Attempts Correct 15 Question 0% 9 of co Attempts 16 Question 0% 3 of 0 Attempts 17 Question 95% 2 of co Attempts Correct 18 Question 95% 2 of co Attempts Correct 19 Question 96.7% 2 of co Attempts Correct 20 Question 100% 1 of co Attempts Correct