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Difference between rotation and revolution

Movement along a curved path defined as circular motion, such as the orbital motion of the planets, ice skater, fan blades, gears, amusement park rides, etc. The two fundamental concepts that are studied in circular motion are rotation and revolution. While rotation indicates the movement in the circle around an axis, the Revolution when an object moves in a circular path around another object or center.

Many people often misinterpret these two concepts because they think these two are the same. But not so, since they differ from one another in the sense that rotation does not change the position of the object, but the revolution does. So, here we have explained the difference between rotation and revolution in detail, take a reading.

Comparative graph

Basis for comparison RotationRevolution
Sense Rotation refers to a circular movement around an axis, located within the object's body. Revolution means a circular movement around an axis, located outside the object.
What is it? Movement of an object on its axis. A complete tour around something.
Axis Internal External
Change of position No s
Land The rotation of the earth from west to east, which causes day and night. The revolution of the earth in a counter-clockwise direction, which causes the seasons.
Example Clocks, spinning top, etc. Round a curve in a car, go around, etc.

Definition of rotation

The term "rotation" is defined as the movement of an object, in a circular way, around the specific point, that is to say the turn, its own axis. There is an imaginary line known as the rotation axis around which a three-dimensional object rotates.

In rotation, each point creates a circle around the center point. Thus, there is an equal distance from the center to any point in the form. expressed in terms of degrees, in which when the rotation is performed in a clockwise direction, the degrees are negative, while a rotation in a counter-clockwise direction results in positive degrees.

The most popular example of rotation is the rotation of the Earth, which takes about 24 hours to complete it, causing day and night.

Definition of revolution

The term "revolution" used to describe a movement, in which an object moves in a circular direction around an object or center, in a fixed path or orbit. It involves traveling around an axis outside the object, that is, the external axis.

The distance traveled by an object, in a revolution, around the circle, not other than its circumference. The time taken by an object to complete a revolution around the circle known as the period represented by T.

The revolution of the Earth around the Sun in a counter-clockwise direction, which requires 365 days and 6 hours to complete. the only reason why the seasons change.

Key difference between rotation and revolution

The difference between rotation and revolution can be clearly traced for the following reasons:

  1. A circular movement around an axis, located inside the body of the object, called rotation. A circular movement around an axis, located outside the object, called revolution.
  2. The rotation is the movement of an object on its axis. On the other hand, the revolution is the complete revolution around something, that is, another object or center.
  3. Rotation occurs when the object rotates around an internal axis. On the contrary, the revolution when the object moves around an external axis.
  4. In rotation, the object moves around its axis, without changing its position. On the contrary, in the revolution, the object moves along an elliptical route, with a continuous change in its position.
  5. The earth's rotation from west to east, which completes in approx. 24 hours. On the contrary, the revolution of the Earth around the Sun in a counter-clockwise direction, which is completed in about 365 days.
  6. Common examples of rotation are the hand of watches, spinning top, etc. On the contrary, the common examples of revolution are the rounding of a curve in a car, cheerful children, etc.

Conclusion

Therefore, with the aforementioned discussion, you may have acquired a broad knowledge of the two terms and will not get confused between them in the future. While rotation means rotating around its own axis, revolution means moving around another object. Taking the example of the Earth, which rotates 366 times to complete a revolution around the Sun.