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Which list correctly orders effort (E), fulcrum (F), and load (L) for each lever class?(1 point)

Responses

A. class 1 = F, E, L (or L, E, F)
class 2 = F, L, E (or E, L, F)
class 3 = L, F, E (or E, F, L)

B. class 1 = F, L, E (or E, L, F)
class 2 = F, E, L (or L, E, F)
class 3 = L, F, E (or E, F, L)

C. class 1 = L, F, E (or E, F, L)
class 2 = F, L, E (or E, L, F)
class 3 = F, E, L (or L, E, F)

D. class 1 = F, E, L (or L, E, F)
class 2 = L, F, E (or E, F, L)
class 3 = F, L, E (or E, L, F)

1 answer

The correct order of effort (E), fulcrum (F), and load (L) for each lever class is as follows:

  • Class 1 lever: Fulcrum (F) is between the Effort (E) and Load (L) (i.e., E, F, L or L, F, E).
  • Class 2 lever: Load (L) is between the Fulcrum (F) and the Effort (E) (i.e., F, L, E or E, L, F).
  • Class 3 lever: Effort (E) is between the Fulcrum (F) and the Load (L) (i.e., L, F, E or E, F, L).

Based on this understanding, the correct answer is:

A. class 1 = F, E, L (or L, E, F) class 2 = F, L, E (or E, L, F) class 3 = L, F, E (or E, F, L)