science quiz systems Flashcards
(17 cards)
what is a system?
a group of individual parts that work together to preform a specific task
what word refers to the parts of a system?
components
efficiency
preforming a function with the least waste of time, energy, or resources
purpose of controls
designed to keep systems safe by preventing or minimizing harm
displacement
refers to how far something moves and in what direction
Unit for measuring work
joules
lubricants
reduce the friction by creating a slippery layer between moving parts
automation
machines that preform repetitive tasks quickly and accurately
input force
the force you apply into a system
output force
the force that moves or lifts the object
Streamlined Designs
reduce air resistance allowing air to flow smoothly
dampers
absorb energy from vibration keeping machines stable
ball bearings
reduce friction by letting parts roll instead of sliding
regenerative breaking
captures energy lost during breaking to make cars more efficient.
Explain the input and output, and purpose of a system
The input of a system is what goes into the system to make it function. The output of a system is what comes out of the system after the process of the input. The purpose of a system is to complete or help finish its tasks.
Be prepared to list and explain at least two ways of providing product information and support to customers
Customer service provides costumers expert advice when setting up a system or when a system breaks down and needs fixing. Another way is clear and simple instructions, which allows customers to understand how systems work which makes them run more efficiently.
Compare and contrast work and force using examples.
a force is a push or pull (measured in Newtons), while work is the energy transferred when a force causes displacement (measured in Joules). You can have force without work (pushing a wall), but you can’t have work without force causing movement (lifting a box).
