If a feather and a hammer are dropped at the same time on the moon, where there is no atmosphere, which one will hit the ground first?

Neither, there is no gravity on the moon.

hammer because it has more mass

feather because it has less mass

Which of these best describes why your weight (on Earth) would change on another planet?

Different planets have different gravitational pulls

Dehydration effects on different planets change weight.

In general, the smaller the planet, the greater weight

Weight does not change, no matter where you are.

What is gravitational force ?

The force of attraction between two objects.

It makes objects at rest start moving.

It makes objects that are moving stop.

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?

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

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

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

What is the relationship between mass and gravitational pull?

Higer mass creates higher gravitational pull

Lower mass creates higher gravitational pull

Lower gravitational pull creates more mass

A girl drops a 7 gram bowling ball and a 1gram rock from a cliff. Which will hit the ground first?

Ignoring air resistance, both will hit at the same time.

What does it mean for an object to be in free fall?

Gravity is the only force acting on the obejct.

Only air resistance acting on the object.

Any object that is in downward motion.

Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?

They would hit the ground at the same time.

They would be suspended in a vacuum.

A crumpled piece of paper hits the ground before a flat sheet of paper because

b. there is more air resistance against the flat paper.

a. the acceleration of gravity is greater on the crumpled paper.

c. the crumpled paper is more massive.

d. the crumpled paper is less massive.

Gravitational Forces

Authored by Maria Hernandez-Gonzales

Physics

8th Grade

NGSS covered

Used 42+ times

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35 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the strength of gravity between two objects depend upon?

Mass & distance

Mass & weight

Gravity & inertia

Inertia & mass

Tags

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the net force acting on the block?

4 lbs to the right

6 lbs to the right

14 lbs to the right

40 lbs to the right

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the net force?

5000 N right

4000 N right

40 N left

4000 N left

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Distance and mass are two factors that affect

Gravitational Force Fields

Magnetic Force Fields

Electric Force Fields

Electrostatic Force Fields

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What makes a rolling ball stop moving?

gravity

friction

a balanced force

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

As the product of two objects' masses increases, the pull of gravity

Increases

Decreases

Stays the same

Tags

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How can you explain that we have a stronger gravitational attraction with Earth than the Sun?

The sun has a larger mass

The sun has a smaller mass

Closer to center of sun

Closer to center of Earth

Tags

NGSS.MS-PS2-4

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Gravitational Forces

What does the strength of gravity between two objects depend upon?

What is the net force acting on the block?

What is the net force?

Distance and mass are two factors that affect

What makes a rolling ball stop moving?

As the product of two objects' masses increases, the pull of gravity

How can you explain that we have a stronger gravitational attraction with Earth than the Sun?

Who said that falling objects fall at the same rate?

Gravity attracts all objects towards one another.

Which of the following will not change in different gravitational fields?

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