How Do You Use A Triple Beam Balance Scale?
Most middle school students must learn to use a triple beam balance scale at some point during their science classes. Often used by physics or chemistry teachers to demonstrate the principle of mass, these devices can be used to weigh any object within their weight limitations. Triple beam balance scales function by balancing an object with three counterweights—attached to the scale—to accurately find the object’s weight. Using one of these devices is not difficult. Calibrate the scale by sliding all three weight poises (the metal brackets that slide along the three beams) to their leftmost positions. Twist the zeroing screw (usually located below the pan in which you place the object to be weighed) until the balance pointer lines up with the fixed zero mark. Place the object to be weighed on the center of the pan. Slide the 100-gram poise right one notch at a time. When the indicator drops below the fixed mark, move the poise left one notch. For instance, if your object weighs 487
