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Physics of Space 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!

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Question 1 1. Which phase of the moon shows a slight crescent illuminated on the left-side of the Moon?

Question 2 2. How is it possible that the moon always faces the Earth?

Question 3 3. New Horizons, launched in 2006, very recently completed its main objective when it photographed the surface of _______.

Question 4 4. Space probes are primarily powered by ____________.

Question 5 5. The point in Earth's orbit where it's closest to the sun is called the:

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Question 6 6. This marks the beginning of summer in the northern hemisphere and winter in the southern hemisphere:

Question 7 7. What would be the most sensible unit with which to measure distances to other galaxies?

Question 8 8. What is an astronomical unit?

Question 9 9. About how many galaxies are thought to be in the Local Group?

Question 10 10. Fill in the blank: The Earth is the _____ planet from the Sun.

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Question 11 11. The four outer planets of the solar system are:

Question 12 12. The planets appear to move in our night sky near the:

Question 13 13. Consider two planets. Planet X has a mass of 100 Units while Planet Y has a mass of 1,000 Units. Which of the following is NOT true concerning these planets?

Question 14 14. Consider an alien on a planet with an acceleration of gravity equal to 20 m/sec2. If the alien's mass is 10 kg, how much does the alien weigh?

Question 15 15. What is gravity?

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Question 16 16. How often did objects collide in the early solar system?

Question 17 17. An eclipse where the Moon blocks the Sun completely, and is visible from somewhere on the Earth's surface is called what?

Question 18 18. Which of the following types of eclipses can be viewed from the most places on Earth?

Question 19 19. In terms of the Earth's orbit, what is a year?

Question 20 20. What is the angle between the Earth's rotational axis and the Earth's orbit around the Sun?

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Question 21 21. How many, approximately spherical, natural satellites does Saturn have?

Question 22 22. How many artificial satellites are currently believed to be in operation?

Question 23 23. What is the phase of the Moon called when you cannot see the Moon?

Question 24 24. Before space probes were invented, scientists had one primary tool for studying stars and planets. What was it?

Question 25 25. March 21st is the date that marks the:

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Question 26 26. How can we figure out distances to far-away objects like stars and galaxies?

Question 27 27. Where is the Earth relative to the center of the universe?

Question 28 28. The word 'planet' comes from the Greek word that means:

Question 29 29. Which of the following is accurate of acceleration due to gravity on Earth?

Question 30 30. Why can you not easily notice a force of gravity between a baseball and a tennis ball?

Physics of Space 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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