Physics Ch. 3

The acceleration of gravity (g) value for an object of mass 'm' located on the surface of some planet of mass 'M' and radius 'R' is ____ related to the ____.

1. directly, mass of the planet 2. inversely, radius of planet

The acceleration of gravity upon Earth's surface is 9.80 m/s/s. At a location of '2R' above Earth's surface (where 'R' is the radius of the Earth), the acceleration of gravity is closest to ____ m/s/s.

1.09

The acceleration of gravity upon Earth's surface is 9.80 m/s/s. At a location of 'R' above Earth's surface (where 'R' is the radius of the Earth), the acceleration of gravity is closest to ____ m/s/s.

2.45

An object of mass 'm' is located a distance 'R' from the center of a planet with mass 'M.' The acceleration of gravity of the mass 'm' at this location is 12 m/s/s. Suppose that the mass of the object is doubled to '2m' and the separation distance is halved to '0.5R.' The new acceleration of gravity value for the mass and the new location would be ____ m/s/s.

96

A satellite is orbiting the Earth. If the mass of the satellite were increased by a factor of 2, then the orbital speed of the satellite would ____ by a factor of ____.

An alteration in the mass of the satellite would not affect its orbital speed.

The orbital speed of an Earth-orbiting satellite is dependent upon the ____. List all that apply in alphabetical order with no spaces or commas between letters.

Mass if earth Distance from the satellite to center of earth

A satellite is orbiting the Earth. If the orbital radius (the distance from the satellite to Earth's center) were somehow increased by a factor of 2, then the orbital speed of the satellite would ____ by a factor of ____.

decrease, square root of two

The acceleration of gravity on the surface of the Earth is 9.8 m/s/s. As one moves increasingly further from the surface of the Earth, the acceleration of gravity value ____.

decreases

A satellite is orbiting the Earth at a constant speed and a constant altitude above the Earth. The best words that could be used to describe the motion of the Earth-orbiting satellite is to say that the satellite is _____. List all that apply in alphabetical order with no spaces or commas between letters.

in a state of free fall

A satellite is orbiting the Earth. If the mass of the Earth were somehow increased by a factor of 2 (without altering the orbital radius of the satellite), then the orbital speed of the satellite would ____ by a factor of ____.

increase, square root of two

The net force acting upon an Earth-orbiting satellite is dependent upon the ____. List all that apply in alphabetical order with no spaces or commas between letters.

mass of satellite distance of the satellite to the center of the Earth

Two objects are located at different locations about two planets with distinctly different masses. Compared to location A, the acceleration of gravity value at location B is ____. Object A Mass = 2 Object B Mass = 1 Radius is twice the amount of Object A

one-eighth the magnitude

acceleration of gravity refers to...

rate of acceleration on an object which is acted on solely by gravity.

An astronaut is on the orbiting Space Shuttle, approximately 60 miles (~100 000 meters) above the surface of the Earth. (The Earth's radius is ~6 360 000 meters and its mass is ~5.98 x 1024 kg.) At this location, one might predict the acceleration of gravity to be ____.

small percent less (1-10%) than 9.8 m/s/s