Measuring Tools for Mass and Weight
The following tools are commonly utilized for measuring mass and weight:
Mechanical Scale
The mechanical scale can be used in various settings, including homes, stores, and gyms. This type of scale allows for direct weight readings on its display, offering ease of use and quick measurement capabilities. Its straightforward operation makes it simple to learn how to take measurements effectively.
Spring Scale
Often referred to as a Newton scale, the spring scale consists of a hook for suspending the items whose weight is being measured. It utilizes a spring to determine the weight of the object being weighed. This device is particularly popular among professionals in industrial settings, though it also sees use in grocery stores.
The spring scale boasts several features that make it particularly suitable for travel, including:
- Lightweight design.
- Compact size.
Electronic Scale
The operation of an electronic or digital scale requires a power source, such as batteries or electricity. It can measure weights of up to 150 kg, a capacity not found in most other weighing instruments. Additionally, electronic scales are advanced and versatile, making them suitable for various applications.
The popularity of electronic scales stems from their high accuracy and the ability to convert measurement units effortlessly. For instance, they can switch between grams and kilograms or grams and pounds, making them commonly found in supermarkets and meat markets.
Triple Beam Balance
A triple beam balance is employed for precise mass measurements, with an error margin of only 0.05 grams. Before use, this scale must be calibrated. Once calibrated, the object to be measured can be placed on the pan for reading.
Suspension Scale
The suspension scale is primarily used for measuring the weights of heavy items, such as trucks or various vehicles. Its compact design allows for easy handling, and to measure weight, the object is suspended from a hook so that a reading can be taken.
Distinction Between Mass and Weight
Mass (English: Mass) and weight (English: Weight) exhibit several key differences. Mass represents the quantity of matter contained in an object, while weight refers to the force exerted on that mass by Earth’s gravitational acceleration. The distinctions between these concepts can be summarized in the following table:
| Comparison Criteria | Mass | Weight |
| Formula | Mass = Volume × Density. | Weight = Mass × Gravitational Acceleration. |
| Type of Quantity | Scalar Quantity. | Vector Quantity. |
| Unit in the Metric System | Kilogram (kg). | Newton (N). |
| Effect of Gravity | Independent of gravitational force; its value remains unchanged regardless of location and cannot equal zero. | Directly reliant on gravity; weight changes with the object’s location and can equal zero in zero-gravity environments. |