Solar System & Gravity

Multiple Choice

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

• skateboards

• bowling balls

• school buses

Multiple Choice

What are Noncontact Forces?

• Objects fall to the ground because Earth exerts an attractive force on them.

• is an attractive force that exists between all objects that have mass

• force that one object can apply to another object without touching

• a region of space that has a physical quantity (such as a force) at every point

Multiple Choice

What is Gravity?

• A force that one object can apply to another object without touching

• is an attractive force that exists between all objects that have mass

• Objects fall to the ground because Earth exerts an attractive force on them

• a region of space that has a physical quantity (such as a force) at every point

Multiple Choice

When the mass of one or both objects……., the gravitational force between them also ……….

• A. Decrees, increases

• B. increases, decrees

• C. increases, increases

• D. Decrees, decrees

Multiple Choice

What are Interacting Objects?

• Objects that affect one another.

• A force.

• Objects that do not affect one another.

• A hammer and my thumb.

Multiple Choice

What is mass?

• Your weight on Earth.

• How much matter in an object?

• A push or pull.

• The same thing as your weight.

Multiple Choice

Who is this?

• Isaac Newton

• An old dude

• Keppler

• No idea

Poll

Where is it easiest to jump?

• Venus

• Earth's Moon

• Jupiter

• Earth

Multiple Choice

Which is needed to determine the amount of gravitational force between two objects?

• distance and mass

• weight and time

• area and weight

Multiple Choice

The gravitational force exerted by an object depends on its

• volume

• mass

• weight

Multiple Choice

Mass is a measurement of 

• how much matter is present in an object
• how much weight is present in an object
• the amount a spring is compressed on a scale
• none of the answers are correct

Multiple Choice

as the mass of an object increases, the pull of gravity...

• Increases

• Decreases

• Stays the same

Multiple Choice

Why do we have a stronger gravitational attraction with Earth than the Sun?

• the sun has a larger mass

• the Earth has a larger mass

• we are closer to center of sun

• we are closer to center of Earth

Multiple Choice

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

• Mass & distance
• Mass & weight
• Gravity & inertia
• Inertia & mass

Multiple Choice

________is what makes up all things in the universe.

• Weight

• Mass

Multiple Choice

The gravitational force between two objects changes with the distance between the two objects

• True

• False

Multiple Choice

An object with more mass will exert greater gravitational force than an object with lesser mass.

• True

• False

Multiple Choice

This FORCE pulls things.  It PULLS things into orbit around the sun. 

• Newton
• gravity
• weight
• path

Multiple Choice

A baseball and bat are on the ground.   What is true?

• They attract each other with equal gravitational force.
• There is no gravitational force between them.
• The baseball will float because it's lighter.
• The bat will pull the baseball closer to itself.

Multiple Choice

A student drops a bowling ball and an apple from a third-story window. Both objects hit the ground at the same time. From the experiment, the student should conclude that

• the apple weighs more than the bowling ball

• more air friction is acting on the apple than on the bowling ball

• gravity pulls on both objects, causing them to fall at the same time.

Multiple Choice

Jupiter has about 317 times more mass than Earth. What can you infer from this fact? 

• That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
• That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
• That Jupiter’s and Earth’s gravitational forces are equal.
• Mass has no effect on the gravitational force between two objects

Multiple Choice

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

Multiple Choice

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

• Dehydration effects on different planets change weight.
• In general, the smaller the planet, the greater weight
• Different planets have different gravitational pulls
• Weight does not change, no matter where you are.

Multiple Choice

Which of the following does not affect the gravitational force between the earth and the sun?

• The net electrical charge of the earth

• The distance between the earth and the sun

• The mass of the sun

• The mass of the earth

Multiple Choice

An astronaut way out in space is considered to be “weightless". This is because–

• his mass is so small relative to the earth that gravity doesn’t affect him.

• gravitational force decreases greatly over long distances.

• gravitational force pushes objects away from each other at long distances.

• objects far away from the earth have less mass.

Multiple Choice

Which statement is true?

• All objects with mass exert a gravitational force.

• Only celestial objects exert a gravitational force.

• Gravity can both push and pull objects.

• Only Earth exerts a gravitational force.