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Orbits, Gravity & Orbital Motion Lesson Plans Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. The word 'planet' comes from the Greek word that means:

Question 2 2. While on Mars, you drop your Martian detector while climbing out of the rover. If you're standing on a platform 8 meters from the ground and the acceleration due to gravity on Mars is -3.8 m/s^2, how long does it take for the Martian detector to hit the ground?

Question 3 3. A hotdog cannon shoots a hotdog straight up in the air with an initial velocity of 30 m/s. How high will the hotdog fly?

Question 4 4. The center of mass of two or more celestial bodies is known as the:

Question 5 5. If celestial body A is 10 times heavier than celestial body B, you would expect their common center of mass as they orbit one another is:

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Question 6 6. The Five Naked-Eye Planets are:

Question 7 7. A celestial object moving with a speed equal to escape velocity will:

Question 8 8. At perihelion:

Question 9 9. An object moving with a speed greater than escape velocity will follow which path?

Question 10 10. If a planet's orbit all of a sudden became more elongated, then:

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Question 11 11. This is an example of an open curve:

Question 12 12. At perihelion:

Question 13 13. Which of the following planets would make the sun wobble more?

Question 14 14. Stored energy subject to gravitational attraction by another body is called:

Question 15 15. The planets appear to move in our night sky near the:

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Question 16 16. A morning star is:

Question 17 17. This is a conic section obtained when a right circular cone is cut by a plane that intersects the cone's axis and surface to produce a closed elongated curve:

Question 18 18. You're standing on top of a building and throw a hammer straight down with an initial velocity of -11 m/s. It takes 4 seconds for the hammer to hit the ground. How high off the ground were you standing when you threw the hammer?

Question 19 19. At aphelion:

Question 20 20. The center of mass is:

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Question 21 21. While climbing a tree, you pick an apple and throw it straight down. After 1 second, the apple is traveling 18 m/s. How fast will the apple be traveling 3 seconds later?

Question 22 22. This is the minimum velocity a body needs to escape the gravitational attraction of a more massive body:

Question 23 23. The four outer planets of the solar system are:

Question 24 24. A tennis ball is dropped from a roof 16 meters from the ground. How long does it take for the ball to reach the ground?

Question 25 25. Which of these is most correct?

Orbits, Gravity & Orbital Motion Lesson Plans Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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