Forces Motion And Energy - Links Flashcards
WHAT IS A LINK?
A link is a fastening unit that connects two parts together.
DIRECT LINK
Connects parts that are complementary (similar) without the help of anything else. Ex: Blocks in a building set that fit together without the help of anything else.
INDIRECT LINK
The link includes one or more fasteners. Something must be added to connect or link the two components. Ex: A knob that is attached to a door with a
screw.
REMOVABLE LINK
The connected parts of the link can be separated at will without damaging the fastener or link surface. Ex: A pen and its cap. If the cap is removed it will
Not damage the pen or cap.
NON-REMOVABLE LINK
The connected parts cannot be separated without damaging one or more of them or the fastener. Ex: A boat made of matchsticks glued together.
If one is removed damage will occur.
RIGID LINK
This link does not allow the position of the assembled elements to be changed. Ex: A table with four legs. If you changed the position of the legs the table would fall over.
ELASTIC LINK
This fastening device can be flattened or stretched to allow the parts to change position. These links usually use springs or rubber blocks. Ex: Suspension on a bike is in a spring shape.
COMPLETE LINK
This link does not allow parts to move independently of each other (one part cannot move without the other part moving as well). Ex: The handle attached to the head of a hammer. Both must do the same motion to work.
PARTIAL LINK
In this link, one of the parts can move in certain directions without the other moving.Ex: A door attached to a door frame. The door moves without the door frame moving.
