What is the function of a measurement tray on a triple beam balance
The Correct Answer and Explanation is:
Correct Answer:
The function of a measurement tray on a triple beam balance is to hold the object being weighed so that its mass can be measured accurately.
Explanation
A triple beam balance is a type of mechanical scale used to measure the mass of an object with high precision. It gets its name from the three beams, each with sliding weights (also called riders) that help determine the total mass of an object placed on the balance. One key component of this balance is the measurement tray, also called the weighing pan or platform.
The measurement tray is a flat, stable surface located at the top or center of the balance. Its main purpose is to hold the object that needs to be weighed. Without the tray, there would be no designated area to place the sample or item, which could lead to inaccurate or inconsistent measurements. The tray ensures that the object remains steady and balanced during the measurement process, preventing movement that could affect the accuracy of the reading.
Additionally, the tray is typically made of lightweight, durable materials such as metal or plastic so that it does not interfere with the mass reading. It is designed to be level and centered on the balance, ensuring that weight is distributed evenly when an object is placed on it. This design helps maintain balance across the three beams and allows for an accurate reading when the pointer aligns with the zero mark.
In summary, the measurement tray is essential because it provides a proper place for holding items during mass measurement. It supports the object in a way that does not add to or alter the actual mass being measured. Without the tray, it would be difficult to use the triple beam balance correctly or safely, and the results would not be as reliable or precise.
