This hooke's Law Spring set allows students to determine the spring constants of 5 different springs. The forces required for a 1 cm extension are 0.25N, 0.5N, 1N, 1.5N and 2.5N respectively. Pre-stress has been removed for accurate results. Each spring has a hook to support a weight hanger and a red arrow to indicate position. Designed for use with hooked weights.
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