Effects of forces — Supplement Learning Objectives
Summary
- Define the spring constant as force per unit extension; recall and use the equation k = F / x
- Define and use the term 'limit of proportionality' for a load-extension graph and identify the point on the graph (an understanding of the elastic limit is not required)
- Recall and use the equation F = ma and know that the force and the acceleration are in the same direction
- Describe, qualitatively, motion in a circular path due to a force perpendicular to the motion as: (a) speed increases if force increases, with mass and radius constant (b) radius decreases if force increases, with mass and speed constant (c) an increased mass requires an increased force to keep speed and radius constant (F = mv^2 / r is not required)
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