U-571 (2000)


Concept featured in film: Pressure variation in a liquid with respect to depth.

Location of clip:


Play Flickclip Here

Summary of clip: The Americans are taking refuge in a captured German U-Boat that is damaged. The Germans know that the Americans have taken over and have access to the Enigma, a machine used for encoding messages. To sink the ship, the Germans are using depth charges.

Connection of flickclip to the concept: Depth charges are barrels that contain explosives and can be set to go off at specific depths. In the film, the Germans set the gauge on the depth charge to explode at 25 meters.

Suggestions for Teachers:

1. Suggested questions for students when viewing the clip:

a. How does the depth charge "know" when to go off?

b. Does the water pressure increase linearly with depth?

c. What pressure does the water exert on the depth charge at 25 meters?

d. What distance does 25 meters correspond to?