Chapter 8 Review
1. What is the force of attraction between the sun and Pluto?
2. The moon has an orbital radius around the earth of 3.9 x 108 meters and a period of 27.3 days. What orbital radius is necessary for a satellite around the Earth to have a period of 1.8 days?
3. What is Mercury’s orbital period in Earth years?
4. Two objects with equal mass have a force of attraction of 8.65 X 10-11 N when they are 2.3 meters apart. What are the masses of the objects?
5. What is the velocity with which Neptune orbits the sun?
6. A moon orbits a planet with a period of 3.6 hrs and an orbital radius of 3.25 X 106 meters. What is the mass of the planet?
7. a) What is the gravitational field on the surface of Venus?
b) How much would a person weigh on Venus if they weighed 875 N on Earth?
8. A satellite orbits Jupiter with a speed of 9600 m/s. What is the orbital radius of the satellite?
9. A 3.5 m long pendulum has a period of 6 seconds on the surface of planet H. Planet H has a radius of 6.2 x 106 m. What is the mass of planet H?
10. A satellite orbits Mars at a distance of 5.4 x 106 meters above the surface of the planet. What is the period of the satellite’s orbit?
b. 788 N
8. 1.38 E 9 m
9. 2.21 E 24 kg
10. 6.94 hrs