Identify the type of motion in the following examples. 
A train moving on a straight track.

Identify the type of motion in the following examples. 

A stone thrown up in the air. 

Identify the type of motion in the following examples. 

The blades of a rotating fan.

Identify the type of motion in the following examples. 

The hands of a clock.

Identify the type of motion in the following examples. 

The plucked string of a guitar.

Identify the type of motion in the following examples. 

Birds gliding in the sky.

Identify the type of motion in the following examples. 

The Earth spinning on its axis.