Fall Exam Review

Front

What is the Oort Cloud?

Back

A spherical region that surrounds the solar system, extending from the Kuiper Belt to almost halfway to the nearest star, containing billions of comets.

Front

What two forces affect the orbital motion of objects in space?

Back

Inertia and gravity.

Front

What is the atomic number of Oxygen?

Back

8

Front

What type of force is acting on a card sliding across a table at a constant speed?

Back

Balanced force.

Front

What is the atomic number of Aluminum?

Back

13

Front

Define inertia.

Back

The tendency of an object to resist changes in its state of motion.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is the difference between the Kuiper Belt and the Oort Cloud?

Back

The Kuiper Belt is a region of the solar system beyond Neptune, while the Oort Cloud is a distant spherical shell surrounding the solar system.

Front

What is the atomic number of Magnesium?

Back

12

Front

What is a balanced force?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.