Flashcards in Simple Machines Deck (30):
What item must be sacrifices in order to have a larger output force than input force?
What class lever is your arm or jaw?
What is the stiff structure that rotates around a point?
What is the force applied to a lever called?
The input force
What is the force applied to the load called?
The output force
What is the distance between the fulcrum and the input force called?
The input arm
What is the distance between the fulcrum and the output force called?
The output arm
What happens is the input and output arms are the same length and distance from the fulcrum?
The forces are equal
What class is the input force greater than the output force?
Which class is the output force greater than the input force?
What class is the input and output forces equal in strength?
If the lever is balanced, what is the mechanical advantage?
A device with moving parts that works together to accomplish a task
In what lever is the input force less than the output force?
In what class is the input force greater than the output force?
Stiff structure that separates the input force and output force
Force energy or power supplied to make a machine accomplish a task
Side of lever in which input force is applied
Force that is applied to a machine
A simple machine that can be used to multiply force, multiply distance, or change the direction of a force. There are 3 classes.
A device with moving parts that work together to complete a task
Ratio of output force divided by input force O/I
Or for levers length of input arm divided by length of output arm iA/oA
Force energy or power provided by machine
Side of lever that lifts the load
1st class lever
Fulcrum in the middle (OFI)
Input force= Output force
2nd class lever
Output force is in middle (FOI)
3rd class lever
Input force in middle (FIO)
Input > Output
Ex: arm or jaw
Force that is provided by a machine
A simple machine that can increase force by changing the distance