Chapter 7 review

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If the distance between two masses were tripled, the gravitational force between them would be a. 1/9 as great b. 1/3 as great c. 3 times as great d. 9 times as great

a. 1/9 as great

If the mass of one of two particles is doubled and the distance between them is doubled, the force of attraction between the two particles will a. decrease b. increase c. remains the same

a. decrease

Compared to the mass of an object at the surface of the Earth, the mass of the object a distance of two Earth radii from the center of the Earth is a. the same b. twice as great c. one-half as great d. one-fourth as great

a. the same

As the distance of a satellite from the Earth's surface increases, the time the satellite takes to make one revolution around the Earth a. decreases b. increases c. remains the same

b. increases

As the mass of a body increases, its gravitational force of attraction on the Earth a. decreases b. increases c. remains the same

b. increases

The path of a satellite orbiting the Earth is best described as a. linear b. hyperbolic c. parabolic d. elliptical

d. elliptical

Two objects of equal mass are a fixed distance apart. If the mass of each object could be tripled, the gravitational force between the objects would a. decrease by one third b. triple c. decrease by one-ninth d. increase 9 times

d. increase 9 times

As the time taken for a car to make one lap around a circular track decreases, the centripetal acceleration of the car a. decrease b. increases c. remains the same

increases


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