What else did you change in the levers lab when you changed the position of the fulcrum? effort force

By changing the position of the fulcrum, the amount of effort Force also changes

The mechanical advantage of a lever is changed when the distance between the pivot point (fulcrum) and the weight is changed. The way levers operate is by an effort applied at a point, which moves a load at another point through a balance point called the fulcrum. If the distance between the fulcrum and the effort is increased, the effort needed to lift a weight decreases proportionally.

radiation

explanation:

heat is transmitted by radiation