Lesson 1: An Engineering Introduction to Machines — SUPPLEMENT (December 6)

This SUPPLEMENTAL assignment is for ONLY for the students who have more than one engineering class with this teacher.

Objectives: (1) To introduce students to the basic concepts of machines, as used by engineers;  (2) to specifically learn the principles of levers; (3) to practice sketching more advanced concepts involving levers.

For each item below, write the name of the object and then:

(A) Draw the object;
(B) Indicate which class the object is;
(C) Label the parts of the lever, including

(i) force (effort),
(ii) load,
(iii) fulcrum

(D) Draw arrows to show the direction of the Force/Load.

EXAMPLE:


Seesaw (Class 1 Lever)


Provide Drawings/information for each of the following:

  1. Wheelbarrow
  2. A claw hammer removing a nail
  3. Tweezers
  4. Scissors
  5. An oar in a rowboat
  6. A crowbar
  7. A baseball bat
  8. A Catapult
  9. A Broom
  10. A nutcracker