CH 4 Physics 4.1-4.2

What is the force of gravity on a 500-N woman standing on Earth's surface?

500N

In the vacuum of outer space, there is no?

atmospheric pressure

A supplier wants to make a profit by buying gold by weight at one altitude and selling it at the same price per kilogram at another altitude. The supplier should?

buy at a high altitude and sell at a low altitude

How far must one travel to completely be beyond Earth's gravity?

forget it; you can't travel far enough

Consider two planets in space that gravitationally attract each other. If the masses of both planets are doubled, and the distance between them doesn't change, then the force between them is?

four times as much

According to Newton, the greater the masses of interacting objects, the?

greater the gravitational force between them

If the mass of the Earth somehow increased with no change in radius, your weight would?

increase also

When the distance between two stars decreases by half, the force between them?

increases to four times as much

According to Newton, the greater the distance between gravitationally interacting objects, the?

less the gravitational force between them

At some point between Earth and the Moon, the forces due to gravity on a space traveler would be the same. This point is?

nearer the Moon

If your mass remains unchanged while both the mass of Earth and its radius doubles, your weight?

reduces by half

Newtown discovered?

that gravity is universal

The objects move toward each other due to gravity. As the objects get closer and closer, the acceleration of each?

the acceleration of each increases

Two objects move toward each other due to gravity. As the objects get closer and closer, the force between them?

the force between them increases

Each of us weighs a tiny bit less inside the ground floor of a skyscraper than we do on the ground away from the skyscraper because?

the mass of the building attracts us upward slightly.

Consider two planets in space that gravitationally attract each other. If the mass of one planet is doubled, and the distance between them doesn't change, then the force between them is?

twice as much