Digital scales give you a readout showing weight in whole numbers and decimal fractions. 3) the block has a net force equation of: F = W - T - T = ma W - 2T = 0 W = 2T This scale reads force in newtons. You can do some interesting investigations of forces using two spring scales. To read a scale that's analog, you have to know what weight scale measurements are indicated by the lines. When weighing myself I step on the scale and get a reading, then step off and wait for it to read zero again, then step back on and the reading is always 3 pounds lighter. A 20-kg fish is weighed with two spring scales, each of negligible weight. What will be the readings on the scales? To Do and Notice. 3,076 0. … The spring can also break, causing the scale to fail altogether. So Newtons need to be converted to KGs or LBs. Longer lines indicate larger increments. Introduction. The properties of the individual spring in the scale must be known by the manufacturer, and the scale needs to be routinely checked to confirm that it is accurate. Homework Helper. Each scale will read 10 kg B. Each scale will read 20 kg C. The top scale will read 20 kg, and the bottom scale will read 0 kg D. The bottom scale will read 20 kg, and the top scale will read … Smaller lines are divisions of the larger numbers. Aug 20, 2005 #4 Tide. Have two people each hold one of the two spring scales. The weight is displayed in backlit numbers on a small screen. The needle moves to a number or a line between numbers to indicate the weight. https://study.com/academy/lesson/how-to-use-a-spring-scale.html If the spring is overloaded and worn out, it will skew the scale results, creating an inaccurate reading. Older-model spring and dial scales may be accurate as little as 13% of the time. An analog scale has a spring inside it, calibrated to move a dial or needle when weight is put on it. Aug 20, 2005 #5 EnumaElish. Spring Scales. Science Advisor. Two identical spring scales, like those used to weigh fish, or those found in physics class. Last edited: Aug 20, 2005. A. A digital scale uses a power source to turn the force of the weight on it into an electrical signal. T = 98 N (T, the tension, is what the scale will read, correct? so I get the tention in the string is 98 for both but I dont know how to combine the two net force equations into a single answer for the balance reading. IF IT HAS NEWTONS AS UNITS THEN A horizontal spring scale would read 200 N Ordinary scales have KGs or LBs. Here’s how a C major scale looks on a staff … determined from flexibility analysis. Each of the notes of a C major scale corresponds with a white key on your keyboard. 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