# Why Axis Is An Imaginary Line?

Answer: The Axis of rotation is an imaginary line passing through the centre of mass of any celestial body around which the celestial body rotates. The Earth makes one complete rotation around this imaginary axis every 23 hours 56 minutes 4 seconds. The line passes through the north and south poles of a planet.

#### What is it called when the Earth is spinning on its axis?

Earth’s Rotation Earth spins around its axis, just as a top spins around its spindle. This spinning movement is called Earth’s rotation. At the same time that the Earth spins on its axis, it also orbits, or revolves around the Sun. This movement is called revolution.

### What does axis rotation mean?

: the straight line through all fixed points of a rotating rigid body around which all other points of the body move in circles.

### What is axis of rotation with example?

In reference to human anatomy, axis of rotation is an imaginary line that projects through the pivot/rotation point in a joint (for example, the axis of rotation for flexing and extending the arm projects through the elbow joint).

## What is axis of rotation in simple words?

### Is the axis of the Earth an imaginary line?

axis noun [ C ] (IMAGINARY LINE) › a real or imaginary straight line going through the centre of a object that is spinning, or a line that divides a symmetrical shape into two equal halves: The earth revolves around the axis that joins the North and South Poles.

#### Which is the best definition of the Axis?

a real or imaginary straight line around which the parts of a thing, system, etc. are symmetrically or evenly arranged or composed: the axis of a picture.

### What does it mean when the Earth revolves around the Axis?

› a real or imaginary straight line going through the centre of a object that is spinning, or a line that divides a symmetrical shape into two equal halves: The earth revolves around the axis that joins the North and South Poles.

### Which is an example of a straight line?

In geometry and optics, a straight line, either real or imaginary, around which a body or figure, or parts thereof, are symmetrically or evenly arranged or composed. In an optical fiber, for example, the axis is the centerpoint of a cross-section.