What is your definition of a revolution?
2a : a sudden, radical, or complete change. b : a fundamental change in political organization especially : the overthrow or renunciation of one government or ruler and the substitution of another by the governed. c : activity or movement designed to effect fundamental changes in the socioeconomic situation.
What is the definition to Axis?
1a : a straight line about which a body or a geometric figure rotates or may be supposed to rotate the Earth’s axis. b : a straight line with respect to which a body or figure is symmetrical the axis of a cone. — called also axis of symmetry.
What is called the axis of rotation of a solid?
If a region in the plane is revolved about a line in the same plane, the resulting object is known as a solid of revolution. The line about which we rotate the shape is called the axis of revolution.
What is meant by solid of revolution?
Definition of solid of revolution : a mathematical solid conceived as formed by the revolution of a plane figure about an axis in its plane.
What is the definition of revolution in geography?
“Revolution” refers the object’s orbital motion around another object. For example, Earth rotates on its own axis, producing the 24-hour day. Earth revolves about the Sun, producing the 365-day year. A satellite revolves around a planet.
What does revolution mean in physics?
When an object turns around an internal axis (like the Earth turns around its axis) it is called a rotation. When an object circles an external axis (like the Earth circles the sun) it is called a revolution.
What is axis in simple words?
The definition of an axis is a real or imaginary line on which something rotates, or a straight line around which things are evenly arranged. An example of axis is an imaginary line running through the earth on which the earth rotates. A main line of motion, development, etc.
Which is solid of revolution?
In geometry, a solid of revolution is a solid figure obtained by rotating a plane curve around some straight line (the axis of revolution) that lies on the same plane. A representative disc is a three-dimensional volume element of a solid of revolution.
Which solid is a solid of revolution?
Solid of Revolution
| solid | |
|---|---|
| cylinder | 0 |
| oblate spheroid | 0 |
| prolate spheroid | 0 |
| sphere | 0 |
Which is the best definition of the axis of revolution?
axis of revolution. noun Mathematics. an axis in a plane, about which an area is revolved to form a solid of revolution.
Where does the word revolution come from in astronomy?
The word “revolution” comes from the word “revolve” and so it makes sense to use the term, although it’s not strictly a scientific definition. The important thing to remember is that objects are in motion throughout the universe, whether they are orbiting each other, a common point of gravity, or spinning on one or more axes as they move.
What’s the difference between a revolution and a rotation?
Fast Facts Rotation usually refers to something rotating on its axis. Revolution usually refers to something orbiting something else (like Earth around the Sun). Both terms have specific uses and meanings in science and mathematics.
When is one complete orbit called a revolution?
If the axis is outside the body itself-that is, if the object is orbiting about another object-then one complete orbit is called a revolution. But if the object is turning about an axis that passes through itself, then one complete cycle is called a rotation.