The insertion is where it joins the moving bone. When a muscle contracts, the insertion moves towards the origin. TENDONS. Tendons are the cords and straps that connect muscles to bones. At the bone, the fibres of the tendon are embedded in the periosteum of the bone.This anchors the tendon strongly and spreads the force of the contraction, so the tendon won t tear away easily.OW MUSCLES WORK. A voluntary muscles usually works across a joint. It is attached to both the bones by strong cords called tendons. When the muscles contracts, usually just one bone moves. For example when the biceps in the arm contracts, the radius moves but the scapula does not.
A potentiometer /pÉµËtÉnÊiËÉmÉ¨tÉr/ , informally a pot, is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat.
A slide wire potentiometer was used to study an electromotive force due to a power source. The potentiometer has 11 parallel wires 1 meter long and a slide tool for precise measurement. that was used was hydrochloric acid or HCl. also performed with a standard volt meter for a comparison of the measuring devices.