science

Created by

Lori Capa

Cards (41)

Thermostat 
System that controls temperature
Thermostat Input
The temperature sensed by the temperature system
Thermostat Output 
Signals sent from the thermostat to the heater to turn it off/on
Thermostat Energy loss 
If they're inaccurate, poorly placed, or set inefficiently
Ways to reduce thermostat energy loss 
Maintain and use them wisely to minimize waste
Vending machine 
System that dispenses products
Vending Input 
User selection and payment
Vending Output
Dispensed product and change
Vending Energy loss
Inefficient cooling, excessive lighting, and standby power usage
Ways to reduce VENDING energy loss
Use energy efficient models, optimize cooling settings, conduct regular maintenance
Home Security alarm system
System that detects and responds to unauthorized access
home input
Signals from sensors indicating unauthorized access
Output
Activation of the alarm system, triggering the siren and sending alerts
Ways to reduce energy loss 
Use energy efficient components, optimize settings, perform regular maintenance
System Failures
Thermostat battery failure
Vending Machine Mechanical Issue (inverted dispenser)
Home Security alarm system: poor installation
Simple Machines 
Lever
Wedge
Pulley
Screw
Wheel & axle
Inclined Plane
Work
Force (Newtons) x Distance (Meters) = Work (Joules)
Mechanical Advantage
Output Force divided Input Force
What is Input
Any action that is introduced to a system
What is Output 
The result of the input
Linkage 
A system of interconnected elements
how thermo impacts humans : Ensures comfort and maintains healthy indoor temperatures
How thermo impacts environment 
Influences energy consumption
Influences efficiency in heating and cooling systems
System 
A group of interacting parts that form a complex whole
Energy 
The ability to do work
System failure 
When one or more parts do not function properly to complete the outcome
Input 
Any action that is introduced to a specific system
Output 
The action that results from the input (the consequence)
Machine 
An example of a mechanical system because they help people do work by transferring energy from one part of the system to another
Mechanical advantage 
A part of simple machines which involves the ratio of the output force to input force
Work 
The energy it takes to move an object
Simple machines 
A basic mechanical device used to make tasks easier, reducing the amount of "work" required
Lever 
A machine made of a bar that rotates around a pivot point called a fulcrum
Wheel and axle 
A machine made of a wheel that is attached to a rod or stick, used for turning or rotational force
Pulley 
A wheel with a groove for a rope, used to lift heavy objects over a direct vertical path
Screw 
A machine made of an inclined plane that is wrapped around a cylinder, used for fastening and lifting
Wedge 
A machine made of two inclined planes put together that can be used to split things apart
Incline plane 
A machine made of a ramp that reduces the force needed to move an object
Mechanical energy 
A combination of the amount of energy stored and energy of motion an object has
Energy loss 
Energy that manages to escape from a system when it is transferred from one part to another