Quiz about Gravitational force and Satellite Motion Review

Question 1

If you double the mass of m2, by what factor will the gravitational force change?

Accepted Answer

2F

Answer

F/2

Answer

4F

Answer

F/4

Question 2

If you decrease the mass of m1 by half, by what factor will the gravitational force change?

Accepted Answer

F/2

Answer

2F

Answer

4F

Answer

F/4

Question 3

If you triple the mass of m1, by what factor will the gravitational force change?

Accepted Answer

3F

Answer

F/3

Answer

F/9

Answer

9F

Question 4

If you double the mass of both m1 and m2, by what factor will the gravitational force change?

Accepted Answer

4F

Answer

F/4

Answer

16F

Answer

F/16

Question 5

How are mass and gravitational force related?

Accepted Answer

directly

Answer

indirectly

Answer

inversely

Answer

inverse squarely

Question 6

How are distance and gravitational force related?

Accepted Answer

inverse squarely

Answer

indirectly

Answer

inversely

Answer

directly

Question 7

If you quadruple the distance between m1 and m2, by what factor will the gravitational force change?

Accepted Answer

1/16 F

Answer

1/4 F

Answer

4F

Answer

16F

Question 8

If you cut the distance between m1 and m2 by half, by what factor will the gravitational force change?

Accepted Answer

4F

Answer

1/4 F

Answer

1/2 F

Answer

2F

Question 9

Which of the following claims is supported by the data?

Accepted Answer

Gravitational forces increase as the masses of the two objects increase

Answer

Gravitational forces are strongest between objects with identical masses.

Answer

Gravitational forces are weakest when one object is more massive than the other.

Answer

Gravitational forces can never exceed an upper limit, regardless of the masses.

Question 10

The gravitational force between two objects will be very small, unless which of the following is true?

Accepted Answer

One of the objects must have a very large mass.

Answer

The objects must be very far apart.

Answer

Both objects must have very large masses.

Answer

Both objects must be in the solid state of matter.

Question 11

What is A force of attraction between two masses?

Accepted Answer

gravitational force

Answer

attractive

Answer

force

Answer

interacting objects

Question 12

What is a measure of how much matter is present in a substance?

Accepted Answer

mass

Answer

force

Answer

gravitational force

Answer

weight

Question 13

When placed at equal distances apart, the greatest gravitational attraction will be between two

Accepted Answer

school buses

Answer

skateboards

Answer

bowling balls

Question 14

The force of gravity is related to the masses of objects attracting each other. Which planet has the greatest mass?

Accepted Answer

Jupiter 23.1

Answer

Mercury 3.7

Answer

Neptune 11.0

Question 15

Amanda weighs about 600 N on Earth, but would only weigh about 100 N on the Moon. Which BEST explains why Amanda would weigh less on the Moon than on Earth?

Accepted Answer

The mass of the Moon is less than that of Earth, therefore it has a weaker gravitational force.

Answer

The circumference of the Moon is smaller than Earth, therefore it has less gravity.

Answer

The lack of air pressure on the Moon weakens the gravitational force of the Moon.

Question 16

What is the relationship between mass and gravitational pull?

Accepted Answer

Higer mass creates higher gravitational pull

Answer

Lower mass creates higher gravitational pull

Answer

Lower gravitational pull creates more mass

Question 17

What is gravitational force?

Accepted Answer

The force of attraction between two objects.

Answer

It makes objects at rest start moving.

Answer

It makes objects that are moving stop.

Answer

It pulls you into space.

Question 18

What is the gravitational force of the sun on a small 5.0 kg book on the earth's surface if the sun's mass is 2.0 x10³⁰ kg and the earth-sun distance is 1.5x10¹¹ m?

Accepted Answer

3.0 x 10^-2 N

Answer

5.9 x 10³ N

Answer

3.0 x 10⁴N

Answer

4.4 x 10⁹ N

Answer

1.5 x 10^-2 N

Question 19

Every object in the universe attracts every other object.

Accepted Answer

Law of Universal Gravitation

Answer

Mass and Distance

Answer

Inertia

Answer

Newton's First Law of Motion

Question 20

Gravitational force between two massive spheres

Accepted Answer

all of the above

Answer

is always an attraction

Answer

depends on how massive they are

Answer

depends inversely on the square of the distances between them

Question 21

Double the distance between two objects

Accepted Answer

4 times weaker gravity attraction

Answer

4 times greater gravity attraction

Answer

2 times weaker gravity

Answer

2 times greater gravity

Question 22

Each planet travels in an elliptical orbit around the sun,and the sun is at one of the focal points is Kepler's___ Law?

Accepted Answer

1st

Answer

2nd

Answer

3rd

Answer

None of the above

Question 23

An imaginary line drawn from the sun to any planet sweeps out equal areas in equal time intervals is Kepler's___ Law?

Accepted Answer

2nd

Answer

1st

Answer

3rd

Answer

None of the above

Question 24

The planet travels faster when it is closer to the sun and slower when it is farther away when it is closer to the sun and slower when it is farther away describes which of Kepler's Laws (see illustration)

Accepted Answer

2nd

Answer

1st

Answer

3rd

Answer

None of the above

Question 25

Predict the magnitude of the gravitational force of 22 N would change if the mass of 2nd object was tripled?

Accepted Answer

66 N

Answer

46 N

Answer

65 N

Answer

92 N

Question 26

Predict the magnitude of the gravitational force of 35 N, the distance was cut 1/4?

Accepted Answer

560 N

Answer

692 N

Answer

135 N

Answer

246 N

Question 27

Predict the magnitude of the gravitational force of 50 N would change if the distance was tripled?

Accepted Answer

5.5 N

Answer

400 N

Answer

36 N

Answer

1.56 N

Question 28

Find the force of gravity (F_g) for two objects with:

m₁ = 100 kg

m₂ = 1000 kg

d = 500 m

Accepted Answer

2.67 * 10^-11 N

Answer

0.4 N

Answer

6.67 * 10^-11 N

Answer

1.3 * 10^-8 N

Question 29

Planets orbit the Sun in a shape called a(n)

Accepted Answer

ellipse

Answer

circle

Answer

focus

Answer

perihelion

Question 30

An ellipse is drawn around two points called

Accepted Answer

foci

Answer

aphelion

Answer

perihelion

Answer

axis

Question 31

When a planet orbits the Sun, one of the foci of the elliptical orbit is

Accepted Answer

the Sun

Answer

the axis

Answer

the perihelion

Answer

the center

Question 32

The place where a planet is closest to the Sun as it orbits the Sun is called the

Accepted Answer

perihelion

Answer

aphelion

Question 33

The place where a planet is farthest away from the Sun in its orbit around the Sun is called the

Accepted Answer

aphelion

Answer

perihelion

Question 34

A planet moves fastest during its orbit around the Sun at the when

Accepted Answer

it is closest to the sun and gravity has a stronger pull

Answer

it is farthest from the sun and gravity has a stronger pull

Answer

it is closest to the sun and gravity has a weak pull

Answer

it is farthest from the sun and gravity has a weak pull

Question 35

Where is the planet moving faster

Accepted Answer

Position A to B

Answer

Position B to C

Answer

Position H to I

Answer

Position I to J

Question 36

What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?

Accepted Answer

Both areas are equal in size

Answer

The area between A, B and the Sun is the largest.

Answer

The area between H, I and the Sun is the largest

Answer

There is not enough information to determine the areas

Question 37

The ratio of a planets average distance from the sun and its orbital period is

Accepted Answer

about the same for each planet

Answer

very different for every planet

Answer

large when the planet is farther away

Answer

not related

Question 38

What has an eccentricity of zero

Accepted Answer

a circle

Answer

a straight line

Answer

a large ellipse

Answer

a small ellipse

Question 39

Kepler's 2nd Law deals with

Accepted Answer

the speed/area the planet travels

Answer

the shape of the planets' orbits

Answer

the length of time it takes the planet to orbit the sun

Question 40

A planet moves __________ when it is farthest from the sun.

Accepted Answer

slower

Answer

faster

Question 41

Kepler's first law states that the orbits of the planets are oval in shape or

Accepted Answer

ellipses

Answer

perfect circles

Question 42

The farther away a planet is from the sun, the _______ it takes it to orbit the sun once.

Accepted Answer

longer

Answer

shorter

Question 43

Kepler's third law of planetary motion describes a relationship between the

Accepted Answer

distance from the Sun and length of year.

Answer

shape of orbit and location of Sun.

Answer

orbital velocity and position in orbit

Answer

path of epicycle and position.

Question 44

Earth's gravitational field extends

Accepted Answer

both inside and outside Earth and throughout the entire universe

Answer

only above and beyond Earth's surface and cancels inside Earth

Answer

neither of these

Question 45

The direction of a gravitational field is

Accepted Answer

in the same direction as gravitational attraction.

Answer

away from the center of gravity of an object.

Answer

opposite to the direction of gravitational attraction.

Question 46

An asteroid exerts a 360-N gravitational force on a nearby spacecraft. The 360-N force on the spacecraft is directed

Accepted Answer

toward the asteroid.

Answer

away from the asteroid.

Answer

toward the Sun.

Question 47

If an object is placed exactly halfway between Earth and the Moon, it would fall toward the

Accepted Answer

Earth.

Answer

Moon.

Answer

neither of these

Question 48

If Earth had twice the mass it has now, how would the gravitational force between it and the Sun change?

Accepted Answer

The gravitational force would be twice as much as it is now.

Answer

The gravitational force would be four times as much as it is now.

Answer

The gravitational force would be half as much as it is now.

Answer

The gravitational force would be the same as it is now.

Question 49

Which of the diagrams shows the greatest gravitational force?

Accepted Answer

II

Answer

I

Answer

III

Answer

IV

Question 50

A student claims that the gravitational force between two objects depends upon the mass of the objects and the distance between them. Which argument best supports the student's claim?

Accepted Answer

If the distance between two objects increases, the gravitational force between the objects will decrease.

Answer

If the distance between two objects decreases, the gravitational force between the objects will disappear.

Answer

If the distance between two objects increases, the gravitational force between the objects will increase.

Answer

If the distance between two objects decreases, the gravitational force between the objects will not change.

Gravitational force and Satellite Motion Review

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