It dependson what type if objects you are asking about, here are a few examples.
In human atomy the knees and elbow are the main joints that move in one plane.
In geometry any two dimensional shape object only move in one plane, per say i.e a line, circle, square, triangle, etc... Technically an open line moves in one plane and a line with points do not move.
For more detail please give more precise detail in your question.
Metacarpophalangeal
A hinge joint is not immovable. A hinge joint has one plane of motion. A good illustration of a hinge joint is the knee joint.
They can only move across one plane
the knee and elbow, hinge joints and only move on one plane (they can only flex and extend)
Because it enables rotation, unlike a hinge joint such as the knee which only allows movement in one plane; back and forth.
A hinge joint. Using your knee as an example of what this means: Standing up you can bend the knee so that your leg is bent behind you, but you cannt twist it or move it in any other way. This is what it is meant by only one plane of movement. Other joints such as your shoulder allow you to move your arm in many different ways meaning it has several planes of movement.
A hinge joint is not immovable. A hinge joint has one plane of motion. A good illustration of a hinge joint is the knee joint.
They can only move across one plane
sf
No. The knee is a hinge joint and is only moveable in one plane.
"A joint between bones (as at the elbow or knee) that permits motion in only one plane; especially : ginglymus."
the knee and elbow, hinge joints and only move on one plane (they can only flex and extend)
The elbow is an uniaxial joint. This type is a synovial joint that permits movement around only one axis and in only one plane. The articulating ends of the bones form a hinge-shaped unity that allows only flexion and extension.
The hinge joint represents a moveable connection between two bones. It is special in that it moves only in one plane. That means that the two pieces can move so they are against each other or move so they are apart, just like a door opens and closes.
Because it enables rotation, unlike a hinge joint such as the knee which only allows movement in one plane; back and forth.
A hinge joint. Using your knee as an example of what this means: Standing up you can bend the knee so that your leg is bent behind you, but you cannt twist it or move it in any other way. This is what it is meant by only one plane of movement. Other joints such as your shoulder allow you to move your arm in many different ways meaning it has several planes of movement.
The knee and elbow both are uniaxial joints. This type is a synovial joint that permits movement around only one axis and in only one plane. The articulating ends of the bones form a hinge-shaped unity that allows only flexion and extension.
A hinge joint is not immovable. A hinge joint has one plane of motion. A good illustration of a hinge joint is the knee joint.