rotary motion
Học thuậtThân thiện
Definition
- Noun:
- The act of rotating as if on an axis: "rotary motion" refers to the movement of an object turning or spinning around a central point or line.
Usage
- "Rotary motion" is a technical term used in physics, engineering, and general description to specify a type of movement distinct from linear motion. It describes circular or spinning movement.
Examples
- Noun:
- The rotary motion of the Earth causes day and night.
- The engineer designed a mechanism to convert linear motion into rotary motion.
- The rotary motion of the fan blades creates a cooling breeze.
Advanced Usage
- Technical Context: In mechanics, "rotary motion" is often contrasted with "reciprocating motion" or "oscillatory motion."
- The crankshaft is responsible for changing the pistons' reciprocating motion into the engine's rotary motion.
Variants and Related Words
- Rotation (n): The action or process of rotating; often used interchangeably with "rotary motion."
- The planet's rotation takes 24 hours.
- Rotational (adj): Relating to or characterized by rotation.
- The wheel has high rotational speed.
- Revolve (v): To move in a circle around a central point.
- The moon revolves around the Earth.
Synonyms
- Spinning: The action of turning or whirling around quickly.
- Revolution: A single complete turn around an axis or center.
- Whirling: Rapid rotary movement.
Related Phrases
- Rotary engine: An internal-combustion engine in which power is transmitted directly to rotating components.
- Rotary dial: A circular dial on a telephone, rotated to input numbers.
Notes
- While "rotation" is a more common general term, "rotary motion" emphasizes the physical nature and mechanics of the movement itself. It is frequently used in scientific and technical descriptions.
Noun
- the act of rotating as if on an axis
- the rotation of the dancer kept time with the music