Goal: Recognize the presence of a force.
Source: UMPERG
A monkey hangs on a rope. What forces act on the monkey? (Ignore
forces due to the air.)
- Friction, Gravitation
- Tension, Gravitation
- Friction, Tension, Gravitation
- Normal, Friction, Gravitation
- More than one answer is true
- None of the above
- Cannot be determined
Commentary:
Answer
(1); Assuming the monkey hangs from a vertical rope
the only forces can be gravity and friction. Students should realize
that there is only one action-at-a-distance force in this case, that of
gravity, and that there must be some contact force(s) to balance that.