# Quiz 8: Gravity

10 Questions | Total Attempts: 130  Settings  Related Topics
• 1.
The kinetic energy of an object will increase the most if you __________________.
• A.

Double the velocity of the object

• B.

Double the mass of the object

• C.

Double the potential energy

• D.

Double the temperature of the object

• 2.
Momentum is the product of ___________.
• A.

Mass times velocity

• B.

Force times distance

• C.

Speed times acceleration

• D.

Time and space

• 3.
When playing billiards, the collisions between the balls are best described as __________________.
• A.

Elastic

• B.

Inelastic

• C.

Expensive

• D.

Exhaustive

• 4.
You have 3 round objects of equal mass and equal radius, but different shapes.  Which of the following shapes will have the largest moment of inertia?
• A.

A hollow ring

• B.

A solid disk

• C.

A solid sphere

• D.

They are all equal

• 5.
is the formula for:
• A.

Moment of inertia

• B.

Rotational kinetic energy

• C.

Total kinetic energy of a moving object

• D.

Potential energy of rotation

• 6.
If the distance between two objects is doubled, what happens to the force of gravitational attraction between them?
• A.

It stays the same

• B.

It is cut in half

• C.

It doubles

• D.

It is 1/4 as strong

• 7.
According to Newton's Law of Universal Gravitation, which of the following do you NOT need to know in order to calculate the force of gravitational attraction between 2 objects?
• A.

Mass of the larger object

• B.

Mass of the smaller object

• C.

• D.

Distance between the two objects

• 8.
When calculating the force of gravity between two objects, you need to measure the distance between:
• A.

The centers of mass of the two objects

• B.

The points where the objects surfaces are closest to each other

• C.

The points where the objects surfaces are farthest away from each other

• D.

Two arbitrary points within the objects' mass

• 9.
According to Keler, the path of a planet's orbit is in the shape of _____________.
• A.

A circle, with the sun at the center

• B.

An ellipse, with the sun at one of the foci

• C.

A circle, with the earth at the center

• D.

An ellipse, with the earth at one of the foci

• 10.
According to Kepler, a planet will travel fastest in its orbit when _____________.
• A.

It is closest to the sun

• B.

It is farthest from the sun

• C.

It is coldest

• D.

It is aligned with the other planets