spring balance

/'spriɳ'bæləns/

Thân thiện

A student uses a spring balance to weigh an apple in science class.

Definition

1. Noun:
   • A weighing instrument that measures weight by the extension or tension of a coiled spring: A spring balance is a device where an object is suspended from a hook attached to a spring. The weight of the object causes the spring to stretch, and the amount of stretch is indicated on a calibrated scale, showing the weight.

Usage

• A spring balance is used to measure the weight (gravitational force) of an object. It is commonly found in educational settings, markets, and for various household or light industrial weighing tasks. It is portable and does not require a flat surface like a scale with counterweights.

Examples

• Noun:
  • The scientist used a spring balance to measure the force of the object.
  • I checked the parcel's weight on the spring balance before posting it.
  • The spring balance indicated a weight of five kilograms.

Advanced Usage

• "To calibrate a spring balance": To adjust or check the scale of a spring balance against known weights to ensure its accuracy.
  • The lab technician had to calibrate the spring balance before the experiment.

Variants and Related Words

• Spring scale: Another common term for a spring balance.
• Force meter / Newton meter: While a spring balance measures weight (in grams or kilograms), a device using the same principle calibrated in newtons measures force. This is a related but distinct instrument often used in physics.

Synonyms

• Spring scale
• Dynamometer (in a general sense for measuring force, though specific types differ)

Notes on Meaning

• The term "spring balance" specifically refers to the weighing instrument. It is a compound noun. The word "spring" here refers to the elastic coil, and "balance" refers to the instrument for measuring weight. It is not used as a verb phrase.

Học thuật

Noun

1. a balance that measure weight by the tension on a helical spring

Từ đồng nghĩa

• spring scale