System Components
A group of parts that work together to perform a specific task.
What is a system?
Physical systems and social systems
What are the two main types of systems?
What is mechanical advantage?
THE RATIO OF OUTPUT FORCE TO INPUT FORCE FOR A GIVEN MACHINE
A basic system that makes work easier.
What are simple machines?
The pivot point of a lever
Fulcrum
Things we put into the system
The things or services that the system produces
What are inputs and outputs?
A group of physical parts that work together to perform a specific task
What is a physical system?
WHAT IS THE MECHANICAL ADVANTAGE WHEN THE INPUT AND OUTPUT ARE THE SAME?
1
It is used to increase accessibility. Ex. Wheelchair ramp
What is an incline plane?
The part of the lever that extends from the fulcrum to the mass being moved
Load Arm
What is a force?
It is a push or pull on an object that may result in a change in the object's motion or shape
Examples are flocks of birds, schools of fish, education systems, and health care.
What are social systems?
WHAT IS MA THAT HAS AN EFFORT ARM OF 120CM AND LOAD ARM OF 40CM
3
a rigid bar that pivots at a point
What is a lever?
The part of the lever that extends from the fulcrum to where the force is applied
the effort arm
The parts required to make the system work
What is a component?
List the types of physical systems
Optical, Electrical, Mechanical, Body System
WHAT IS MA TO LIFT A LOAD OF 5CM WITH A PULLEY SYSTEM AND 15CM OF STRING THAT NEEDS TO BE PULLED?
3
Used to join two things together.
What is a screw?
Class one
Systems are composed of smaller.....
What is a subsystem?
List 2 similarities between social and physical systems
Both are made up of parts that work together
Both are designed to perform a function
Both have inputs and outputs
CAN the MECHANICAL ADVANTAGE BE LESS THAN 1?
YES (WHEN INPUT IS GREATER THAN OUTPUT FORCE.
A door stop is an example of
What is a wedge?
A fishing rod is an example of what class of lever
Class 3- The input force is between the fulcrum and the load.