Answers25-26 TX-Physics A-CRCircular Motion

Newton's First and Third Laws Answers

8 verified answers
2
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In the equation for the gravitational force between two objects, which quantity must be squared?

A
m1
B
m2
C
G
D
d
3
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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.
4

How is the gravitational force related to the distance between two objects?

A
It is directly proportional to the square of the distance.
B
It is inversely proportional to the square of the distance.
C
It is directly proportional to the distance.
D
It is inversely proportional to the distance.
5

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
6

What is the downward pull on an object due to gravity?

A
mass
B
weight
C
acceleration
D
velocity
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

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.
9

Review the table detailing the mass of Jupiter’s moons and their distance from the planet.

Question illustration
A
Io
B
Europa
C
Ganymede
D
Callisto

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Newton's First and Third Laws Answers — 25-26…