Syllabus concepts to know

• 3.3.1 There are four types of motion involved in mechanical systems.
• 3.3.2 Mechanical systems convert an input into an output.
• 3.3.3 Mechanical systems can provide a mechanical advantage to the user.
• 3.3.4 Mechanical systems are used to increase or decrease the speed, direction or power of a motion.
• 3.3.5 The four types of motion can be combined to create simple or complex mechanical systems.
• 3.3.6 Gears transmit rotary motion from one gear shaft to another, and have a number of teeth.
• 3.3.7 Belt-driven systems are driven by pulleys.
• 3.3.8 The shape of a cam dictates the type of motion.
• 3.3.9 Levers comprise a beam acting on a fulcrum (pivot) and are classed based on the relative position of the fulcrum to an applied load and effort.
• 3.3.10 Linkages are used to change the direction of a movement, alter the magnitude of a force or make parts of a system move in a particular way.