Chapter 1
System
What is a group of parts that work together to perform a desired task?
the pivot point of a lever
what is the fulcrum?
the ratio of output force to input force for a given machine
what is mechanical advantage?
the tasks or service that a system performs
what is output?
the force that the input force has to overcome in order to cause movement
what is load force?
A group of physical parts that work together to perform a function.
What is a Physical System.
the part of a lever that extends from the fulcrum to the mass being moved
what is the load arm?
the mechanical advantage of a machine if all of the input force is converted into output force
what is ideal mechanical advantage?
the unintended or undesired outputs of a system
what is side effects?
the unit used to measure forces
what is a newton?
a group of people, or other organisms, joining together to perform tasks and establish relationships
what is a social system?
the part of a lever that extends from the fulcrum to where the force is applied
what is the effort arm?
the mechanical advantage of a machine in real-world applications
what is actual mechanical advantage?
taking into consideration the inputs, the outputs, and side effects of systems
what is systems thinking?
the force that resists the movement of objects sliding or rolling over one another
what is friction?
any push or pull
what is force?
the effort force applied to the lever
what is input force?
the ability to do something well or achieve a desired output without wasting energy, effort, or materials
what is economic efficiency
linking personal happiness with the purchase of goods and services
what is consumerism?
the force that acts like a brake when one surface slides over another surface
what is sliding friction?
water to help plants grow
what is input?
the force the lever applies to the load
what is output force?
the percentage of work input that is turned into useful work or output
what is mechanical efficiency?
the quantity of force
what is magnitude?
the force that holds a motionless object where it is, preventing it from being moved across another object's surface
what is static friction?