AnswersSLPS-2001310-EarthSpace B -GFClassification of Living Things

Universal Law of Gravitation Answers

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The acceleration due to gravity on Jupiter is 23.1 m/s2, which is about twice the acceleration due to gravity on Neptune.

A
An object weighs about one-fourth as much on Jupiter as on Neptune.
B
An object weighs about one-half as much on Jupiter as on Neptune.
C
An object weighs about two times as much on Jupiter as on Neptune.
D
An object weighs about four times as much on Jupiter as on Neptune.
2
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The image shows a model of the gravitational field around Earth.

Question illustration
A
The field exerts an attractive force only outside of the ring of arrows that point toward Earth’s surface.
B
The field exerts an attractive force only within the ring of arrows that point toward Earth’s surface.
C
The strength of the field increases as you get farther from Earth, as shown by the larger spaces between the circles.
D
The strength of the field increases as you get closer to Earth, as shown by the smaller spaces between the circles.
3

The gravitational force between two objects is 2000 N. The mass of each object is reduced to one-third of its original mass.

A
The distance must be one-ninth the original distance.
B
The distance must be one-third the original distance.
C
The distance must be three times greater.
D
The distance must be nine times greater.
4

The gravitational force between two objects is proportional to the product of the masses of the objects.

Answer not available
5

A probe orbiting Venus exerts a gravitational force of 2.58 × 103 N on Venus. Venus has a mass of 4.87 × 1024 kg. The mass of the probe is 655 kilograms. The gravitational constant is 6.67 × 10-11 N*m2/kg2.To three significant digits, the probe is × 106 m from the center of Venus.

Answer not available
6

The gravitational force between two objects is 45,000 N. What will be the gravitational force between the two objects if the distance between the objects is reduced by one-half?

A
11,250 N
B
22,500 N
C
90,000 N
D
180,000 N
7

Which changes would result in a decrease in the gravitational force between two objects? Check all that apply.increasing the distance between the objectsdecreasing the distance between the objectsincreasing the mass of one of the objectsincreasing the mass of both objectsdecreasing the mass of one of the objectsdecreasing the mass of both objects

A
increasing the distance between the objects
B
decreasing the distance between the objects
C
increasing the mass of one of the objects
D
increasing the mass of both objects
E
decreasing the mass of one of the objects
F
decreasing the mass of both objects
8

A baseball has a mass of 0.145 kilograms, and a bowling ball has a mass of 6.8 kilograms. What is the gravitational force between them if their centers are 0.5 m apart?

A
1.0 × 10–13 N
B
1.3 × 10–10 N
C
2.6 × 10–10 N
D
1.1 × 10–8 N
9

Which are the effects of gravity on objects on the surface of Earth? Select 2 options.Objects “fall” toward the center of Earth.Objects are pulled by Earth but do not pull on Earth. Objects accelerate at a rate of 9.8 m/s each second.Objects travel at a rate of 9.8 m/s toward the center of Earth.Objects pull on the Earth is much stronger than the Earth’s pull on the object.

A
Objects “fall” toward the center of Earth.
B
Objects are pulled by Earth but do not pull on Earth.
C
Objects accelerate at a rate of 9.8 m/s each second.
D
Objects travel at a rate of 9.8 m/s toward the center of Earth.
E
Objects pull on the Earth is much stronger than the Earth’s pull on the object.
10

Shari uses the data in the table to predict how her weight on Venus would compare with her weight on Earth.Which is the best prediction Shari could make?

Question illustration
A
Her weight is greater on Venus because Venus has less mass.
B
Her weight is lower on Venus because the acceleration due to gravity is lower.
C
Her weight is lower on Earth because it is farther from the Sun.
D
Her weight is greater on Venus because Venus has a smaller diameter.

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