ENGINEERING CHAPTER 4
MECHANISMS QUESTIONS AND
VERIFIED ANSWERS|100%
CORRECT|GRADE A+
What is a mechanism? - ANSWER A group of moving mechanical components that are supported by a
rigid frame.
How does a mechanism differ from a simple machine? - ANSWER A simple machine is a single
mechanical device that performs work. A mechanism is two or more moving mechanical components
that perform on the same principles simple machines are based on.
Linkage System - ANSWER Series of interconnected levers. Transmits force and controls motion. Can be
found on scissor lift and slider crank mechanism.
Cam & Follower - ANSWER A mechanism that changes continuous rotary motion intermittent linear
motion. Camshaft is a main component in a combustion engine. Camshafts drive pistons in engine. Can
be found on a bow and arrow too.
Bearings - ANSWER Bearings are used to reduce friction where two surfaces meet and slide against each
other. Can be found in cars, skateboard wheels, and bushings.
Gears - ANSWER A toothed wheel that transmits rotary motion. Can be found in RC cars, bikes.
Slider Crank - ANSWER
Rocker Bar - ANSWER has a fixed pivot point and rotate back and forth through a fixed angle of motion
Crank - ANSWER Uses one fixed pivot point. Has the ability to rotate 3sixt0 degrees.
Do mated gears spin in the same direction? why or why not? - ANSWER No
MECHANISMS QUESTIONS AND
VERIFIED ANSWERS|100%
CORRECT|GRADE A+
What is a mechanism? - ANSWER A group of moving mechanical components that are supported by a
rigid frame.
How does a mechanism differ from a simple machine? - ANSWER A simple machine is a single
mechanical device that performs work. A mechanism is two or more moving mechanical components
that perform on the same principles simple machines are based on.
Linkage System - ANSWER Series of interconnected levers. Transmits force and controls motion. Can be
found on scissor lift and slider crank mechanism.
Cam & Follower - ANSWER A mechanism that changes continuous rotary motion intermittent linear
motion. Camshaft is a main component in a combustion engine. Camshafts drive pistons in engine. Can
be found on a bow and arrow too.
Bearings - ANSWER Bearings are used to reduce friction where two surfaces meet and slide against each
other. Can be found in cars, skateboard wheels, and bushings.
Gears - ANSWER A toothed wheel that transmits rotary motion. Can be found in RC cars, bikes.
Slider Crank - ANSWER
Rocker Bar - ANSWER has a fixed pivot point and rotate back and forth through a fixed angle of motion
Crank - ANSWER Uses one fixed pivot point. Has the ability to rotate 3sixt0 degrees.
Do mated gears spin in the same direction? why or why not? - ANSWER No
