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MECHANICAL DEVICES QUESTIONS AND VERIFIED ANSWERS|100% CORRECT|GRADE A+
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MECHANICAL DEVICES QUESTIONS AND VERIFIED ANSWERS|100% CORRECT|GRADE A+
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MECHANICAL DEVICES QUESTIONSAND VERIFIED ANSWERS|100%
CORRECT|GRADE A+
Machine - ANSWER A device that helps us do work
Simple Machine - ANSWER Tool or device made up of one basic machine.
Lever - ANSWER Simple machine made up of a rigid bar or plank that rotates on a fixed object called
pivot or fulcrum.
Inclined plane - ANSWER Simple machine made up of a flat surface such as a board at an angle to other
flat surfaces such as the ground or a tabletop.
Wedge - ANSWER Simple machine that looks like an inclined plane but it is forced into a object.
Screw - ANSWER Simple machine that consists of a cylinder with a groove cut in spiral on the outside.
Pully - ANSWER Simple machine made up of a wire, rope or cable moving on a grooved wheel; can be
fixed in place or movable.
Wheel and Axle - ANSWER Simple machine made up of two wheels of different diameters that turn
together; a longer motion on the wheel produces a shorter but more powerful motion at the axle.
Complex machines - ANSWER System in which simple machines all work together; Parts of a complex
machine that have just one function are called subsystems and often contain a simple machine.
Systems - ANSWER In context of machine... a group of parts that work together to perform a general
function forming a complex machine.
Subsystems - ANSWER (Of a machine) smaller group of parts within a complex machine that performs a
specific function.
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