Mechanical Systems and Control

What are mechanisms?

• Processes or systems used to achieve a result or outcome
• Tools or instruments used to fix or repair something
• Methods or techniques used to solve a problem
• Devices or equipment used to perform a task

Tags

NGSS.MS-ETS1-4

What is an example of a mechanism?

• pulley
• lever
• screwdriver
• hammer

Tags

NGSS.MS-PS2-1

What is a first-class lever?

• A first-class lever is a type of wheel and axle system.
• A first-class lever is a simple machine that consists of a rigid bar or beam that pivots on a fulcrum.
• A first-class lever is a type of pulley system.
• A first-class lever is a type of inclined plane.

What is a second-class lever?

• A second-class lever is a lever where the effort is located between the fulcrum and the load.
• A second-class lever is a lever where the fulcrum is located between the load and the effort.
• A second-class lever is a lever where the load is located on the same side as the effort.
• A second-class lever is a lever where the load is located between the fulcrum and the effort.

What is a third-class lever?

• A third-class lever is a type of lever where the effort is applied between the fulcrum and the load.
• A third-class lever is a type of lever where the load and the effort are applied at the same point.
• A third-class lever is a type of lever where the fulcrum is applied between the effort and the load.
• A third-class lever is a type of lever where the load is applied between the fulcrum and the effort.

What is mechanical advantage?

• The ratio of output force to input force
• The ratio of input force to output force
• The force required to perform a mechanical task
• The speed at which a machine operates

What is pneumatics?

• Study of the human respiratory system
• Branch of engineering dealing with pressurized gas
• Branch of engineering dealing with electricity
• Study of the Earth's atmosphere

What is hydraulics?

• Study of the movement of air
• Branch of science and engineering dealing with mechanical properties of liquids
• Study of the properties of solids
• Branch of science and engineering dealing with electrical properties of liquids

What is a pulley?

• A pulley is a type of screw used to fasten objects together.
• A pulley is a device used to measure weight.
• A pulley is a tool used for cutting materials.
• A pulley is a simple machine that consists of a wheel with a groove in its rim and a rope or cable that runs along the groove.

What is an example of a pulley system?

• Flagpole
• Television
• Bicycle
• Elevator

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2