The pressure gradient force drives the movement of air from high pressure to low pressure areas.

Their performances in the play were true tours de force.

Atomic force microscopes are used to study the surface of materials at the nanoscale.

The pressure gradient forces in the atmosphere play a crucial role in determining the direction and speed of air movement.

May the force be with you.

May the Force not be with you.

He had to force his way through the crowd to reach the exit.

The general of the air force is responsible for overseeing the operations and strategic planning of the entire air force.

The generals of the air force gathered for a meeting.

Air Force One is the official air traffic control call sign for a United States Air Force aircraft carrying the President of the United States.