A2L Item 158

Goal: Hone the concept of displacement

Source: CT151.2-2

Bekki walks 3 m to the right, 4 m to the left, 5 m to the right, and 2 m
to the left. What is her displacement?

  1. 0 m
  2. 2 m
  3. 2 m (to the right)
  4. 2 m (to the left)
  5. 14 m (to the right)
  6. 8 m to the right and 6 m to the left
  7. impossible to determine
  8. none of the above

Commentary:

Answer

(3) Students need to distinguish between distance and
displacement. Questions such as this are good introductions to vectors.