PHYSICS 1L03 Study Guide - Midterm Guide: Net Force, Flowchart
28 Jun 2016
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Document Summary
Help keep our atoms and molecules together. Allow us to interact with our environment. Holds atoms and molecules together causes atoms and molecules to repel each other if they get too close. Gravity is the weakest of the four forces, but it is very significant because: Any force acting on an object can change the shape and/or velocity of the object. Si unit for force: the newton [symbol: n] One newton is equal to one kilogram-metre per second squared [1kg m/s2] The force required to move a 1-kg object with an acceleration of 1m/s2. The direction of a force is described using reference coordinates. Only the force vectors exerted on the object. Vectors are drawn with their tails meeting at the approximate centre of the object. The centre does not necessarily mean where the forces act. Normal force [n]: a force that is perpendicular to this common surface.
