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   ocr: How springy 1S a spring? You compress or extend a spring by applying a force to it. Ifyou double the amount of force you apply to a spring, you will double the amount it compresses or extends. NO LOAD 10N 20N 30N To find out just how springy the springs are in the pinball game, you need to measure a property of each spring called its elastic constant. You can work out the elastic constant of a spring by dividing the force you apply to it by its change of length. So, ifa force of 15 newtons makes a spring 3 centimeters longer, the spring has an elastic constant of 500 newton meters. 15N 500N/m ...