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Universal Law of Gravitation — Quiz Answers

10 verified answers
1
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Which of Jupiter’s moons has the greatest gravitational force with Jupiter?

A
Ganymede
B
Io
C
Europa
D
Callisto
2
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Which is the best prediction Shari could make?

A
Her weight is lower on Venus because the acceleration due to gravity is lower.
B
Her weight is greater on Venus because Venus has less mass.
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.
3

Which best describes the model?

A
The field exerts an attractive force only outside of the ring of arrows that point toward Earth’s surface.
B
The strength of the field increases as you get closer to Earth, as shown by the smaller spaces between the circles.
C
The strength of the field increases as you get farther from Earth, as shown by the larger spaces between the circles.
D
The field exerts an attractive force only within the ring of arrows that point toward Earth’s surface.
4

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
22,500 N
B
180,000 N
C
90,000 N
D
11,250 N
5

The acceleration due to gravity on Jupiter is 23 point 1 m/s squared , which is about twice the acceleration due to gravity on Neptune. Which statement accurately compares the weight of an object on these two planets?

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 four times as much on Jupiter as on Neptune.
D
An object weighs about two times as much on Jupiter as on Neptune.
6

Which are the effects of gravity on objects on the surface of Earth? Choose two correct answers.

A
Objects “fall” toward the center of Earth.
B
Objects travel at a rate of 9.8 meters per second toward the center of Earth.
C
Objects pull on the Earth is much stronger than the Earth’s pull on the object.
D
Objects are pulled by Earth but do not pull on Earth.
E
Objects accelerate at a rate of 9.8 meters per second each second.
7

Neptune has a mass that is about 17 times the mass of Earth. The distance between the Sun and Neptune is about 30 point 1 times the distance between the Sun and Earth. If the gravitational force between the Sun and Earth is 3 point 5 x 10 to the 28th power cap n , which is closest to the force between Neptune and the Sun?

A
6 x 10 to the 27th power cap n
B
6 x 10 to the 29th power cap n
C
6 x 10 to the 28th power cap n
D
6 x 10 to the 26th power cap n
8

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

A
acceleration
B
weight
C
velocity
D
mass
9

Which equation is used to calculate the weight of an object on a planet?

A
w is equal to m cap g
B
w is equal to mg
C
w is equal to m over cap g
D
w is equal to m over g
10

A probe orbiting Venus exerts a gravitational force of 2 point 5 8 times 10 cubed cap n on Venus. Venus has a mass of 4 point 8 7 times 10 to the 24th power kilograms The mass of the probe is 655 kilograms. The gravitational constant is 6 point 6 7 times 10 to the negative 11 power cap n to the th power times the fraction with numerator m squared and denominator kg squared

Answer:

9077000

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