Days of Thunder

Indiana Jones and the Raiders of the Lost Ark (1981)


Concept featured in film:Levers

Location of clip: DVD: 0:57:35 - 1:00:00


Play Flickclip Here

Summary of clip: The scene opens with Indiana Jones and several workers digging, trying to find the opening to a secret chamber containing the arc. When the workers finally hit stone, they clear off the dirt and find a large rectangular slab of rock that covers the entrance. At this point, they use pry bars to pry the slab open, so Indiana Jones can get inside.

Connection of flickclip to the concept: This is a great clip illustrating the use of levers in a "practical" setting.

Suggestions to Teachers:

1. Suggested questions for students when viewing the clip?

a. Have students pay attention to thelength of the lever arm (pry-bar) and where the force is applied. What would happen if the leverarm were shorter (i.e., force was applied closer to the fulcrum)? Would the effort needed to movethe load (rock) increase or decrease? Explain.

b. What are the different classes of levers?

c. What class of lever is used in this clip?

d. What are some everyday examples of levers in action?