Tension isn't just what you experience before an exam! Whenever a rope is being used to pull an object, the rope experiences tension.

In most cases, the rope's mass is much less than the block's mass. So, we can ignore the rope's mass. The direction of tension is always along the rope, away from the object.
Which diagram represents the FBD of the pail (the bucket that contains the water)?
  • Diagram 1
  • Diagram 2
  • Diagram 3
  • Diagram 4