TExES Physics/Math 7-12: Laws of Gravitation 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. In general, what are Kepler's Laws?

Question 2 2. A planet is orbiting its star at a maximum radius of 1.2 x 10^7 meters. If the mass of the star is 2 x 10^30, what is the time period of the orbit?

Question 3 3. Why do you feel 'weightless' on the moon?

Question 4 4. 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 5 5. Consider an alien on a planet with an acceleration of gravity equal to 20 m/sec^2. If the alien's mass is 10 kg, how much does the alien weigh?

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Question 6 6. The gravitational force between two objects depends on

Question 7 7. Which of the following is accurate of acceleration due to gravity on Earth?

Question 8 8. If all of the objects have around the same mass, which of the following objects has the most gravitational potential energy?

Question 9 9. Which is the equation for the law of universal gravitation?

Question 10 10. A 10 kg bowling ball is lifted from the ground to a height of 1 meter. Assuming the bowling alley is on Earth, how much gravitational potential energy does it now have?

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Question 11 11. Consider a 10 kg object free-falling from a cliff with an initial velocity of 0 m/sec. How fast will the object be traveling after 1 sec and after 2 sec?

Question 12 12. How do we know that gravitational potential energy exists?

Question 13 13. What is an elliptical orbit?

Question 14 14. If the distance between two objects is 500 km and is increased to 1000 km, what happens to the gravitational force between them?

Question 15 15. Which of the following orbital eccentricities is NOT an elliptical orbit?

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Question 16 16. The law of universal gravitation states that

Question 17 17. Which of the following is accurate about the force of gravity?

Question 18 18. If a car is rolling naturally downhill without the engine running, what energy transfer is happening?

Question 19 19. You lift a 3kg dumbbell from the ground until it is above your head, at a height of 1.5 meters. How much energy did you use in the process? (Assume that you're not a space alien, and your gym is on Earth.)

Question 20 20. A planet is orbiting its star at a maximum radius of 1.2 x 10^7 meters. If the mass of the star is 2 x 10^30, and the current radius is 0.9 x 10^7 meters, what is the velocity of the orbit?

TExES Physics/Math 7-12: Laws of Gravitation 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!

TExES Physics/Mathematics 7-12 (243): Practice & Study Guide  /  Math Courses
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