Which of the following statements describes how a balance obtains a measurement?
Well, you see, a balance is a very crafty device. It first starts by whispering sweet nothings to the weights, trying to coax them into revealing their true value. Then, it tickles the weighing pan with a feather to see how much it giggles. Finally, it spins the weights around like a dizzy ballerina to see how much they wobble. After all this circus act, the balance magically calculates the measurement and proudly displays it for the world to see. It's like a blend of magic, charm, and acrobatics all in one!
A balance obtains a measurement by comparing the weights of two objects.
Here are the steps involved in obtaining a measurement using a balance:
1. Set up the balance: Place the balance on a stable surface, making sure it is level and properly calibrated.
2. Tare the balance: Adjust the balance to read zero by removing any objects already on the balance or by using the tare function (if available).
3. Place the object to be measured: Carefully place the object on one side of the balance, known as the pan.
4. Add weights to the other side: On the opposite side of the balance, add weights or masses until the balance returns to equilibrium.
5. Record the measurement: Once the balance is balanced again, note the mass or weight displayed on the balance.
6. Repeat as necessary: If multiple measurements are needed, remove the object from the balance, tare the balance again if necessary, and repeat steps 3 to 5 for each object.
7. Clean up: Remove the objects from the balance, return any weights to their proper place, and clean the balance if needed.
It's important to handle the objects and weights carefully and make sure they are clean, as any dirt or debris can affect the accuracy of the measurement. Additionally, it's crucial to follow any specific instructions provided by the manufacturer for the particular balance being used.
A balance obtains a measurement by comparing the mass of an object being measured to the mass of a set of standard weights. The balance works on the principle of equilibrium, which states that the object is in balance when the force exerted by the object's mass is equal to the force exerted by the standard weights.
To use a balance to obtain a measurement, follow these steps:
1. Place the object to be measured on the pan or platform of the balance.
2. Adjust the balance by moving the weights until the balance beam is horizontal or the pointer is at zero.
3. Read the value indicated by the position of the weights. This value represents the mass of the object, typically in grams or kilograms.
It's important to note that balances may have different designs and mechanisms, but the fundamental principle of comparing the mass of the object to standard weights remains the same.