Systems
A group of parts that work together to perform a specific task.
What is a system?
A basic system that makes work easier.
What are simple machines?
A push or pull on an object.
What is Force?
The weight (Fg) of an object that has a mass of 100kg on Earth.
What is 980 N?
Things we put into the system
The things or services that the system produces
What are inputs and outputs?
It is used to increase accessibility. Ex. Wheelchair ramp
What is an incline plane?
Magnitude and Direction.
What are two components all Forces have?
The amount of work done when a 5 N force moves a block 4 m.
What is 20 J?
Natural Systems and Human Made Systems
What are the two main types of physical systems?
Output: moving the load
What is a lever?
Force of gravity= mass x strength of gravitational field
(Fg=mg)
What is the formula for Weight?
The mass of an object that has a Force of gravity of 10 N.
What is 1.02 Kg?
Solar System, Water System, Respiratory System
What are Natural Systems?
Used to join two things together.
What is a screw?
W = F x distance
What is the work formula?
The amount of energy given to 200 N couch if it is pushed 35 metres.
What 7000 J?
Uses Flow Energy (Liquid or Gas)
What is an Hydraulic System?
Scissors and an axe
What is a wedge?
This never changes.
What is mass?
The amount of energy given when a Force of 150 N is used to push an elephant for 30 minutes and it doesn't move.
What is 0 J of energy?