Systems
_________ occur when there are components or processes that work together to perform a goal or meet a need.
What is Systems
This simple machine is often found on flagpoles and construction cranes.
What is a pulley.
This term in science, happens when an object (or anything really) is being pushed or pulled.
What is force.
In the formula, W = F x d, the letter W stands for this term.
What is Work
In science, the letters MA stand for this.
What is Mechanical Advantage
This system helps you breathe by bringing oxygen into your body.
What is the respiratory system?
The fixed point on a lever where the lever rotates is called this.
What is the fulcrum
_________ occurs when a force can move an object from one location to another.
What is work.
What is Joules
A machine with a mechanical advantage greater than 1 makes work feel this way.
What is easier.
A school is an example of this type of system.
What is a social system.
This type of simple machine is actually an inclined plane wrapped around a cylinder.
What is a screw
This term is used to describe an object being moved from one location to another.
What is displacement
A force of 10 N moves an object 3 m. The work done is this amount.
What is 30 Joules
The formula used to calculate Mechanical Advantage is this.
What is MA = F out / F in
There are two main types of systems.
What are physical systems and social systems.
If a machine has a mechanical advantage of 2, it means this about the amount of effort force required.
What is the effort force (input force) is 1/2 the output force or there is a 2x mechanical advantege.
The amount of work completed can be calculated using this formula.
W = F x d
Ms. Wolski picks up her coffee, takes a sip and sets it back down. She did this amount of work.
What is 0 Joules
This trade-off usually happens when a simple machine reduces the force required to complete a task.
What is increase the distance.
In a toaster, if bread is the input, heat is the process, this is the output.
What is toasted bread.
Scissors contain two simple machines.
What are a wedge and a lever.
This term is used to describe how much energy was used and whether that energy was actually useful work or not.
What is efficiency.
A student does 90 J of work while moving a desk 6 m. The force used was this amount.
Remember w = F x d so... F = w / d
F = 15 Newtons
A machine has an output force of 60 N and an input force of 20 N. Its mechanical advantage is this.
MA = 60N / 20N
MA = 3