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FINDING THE MASS OF AN OBJECT

Mass is the amount of matter an object has. We often use a triple-balance beam to measure mass.


A triple-beam balance gets its name because it has three beams that allow you to move known masses along the beam.

Here is a picture of a triple beam balance. You probably have used one in school.


There are also many other types of balances. Scientists need balances that can measure very small amounts of mass.

If you are using a triple beam balance in school you might want to brush up on your skills on how to use a triple-beam balance

Because a triple beam balance compares a known mass to an unknown mass it is unaffected by gravity. Unlike a spring scale which really measures weight, the triple beam balance gives a true measure of mass.

Do you often get confused between mass and weight? Check out the Mass vs. Weight Page


Now it's time to practice your skills using the triple-beam balance.



Problem 1:

A block is put onto a triple beam balance.

What is the mass of the object (to the closest tenth of a gram)?

Remember to find the mass using a triple beam balance you must add the mass values of each of the three beams.

Type your answer in the space provided below, then hit the submit button.

The mass of the object is:

Please enter your answer for Block I in the space provided:


grams

If you need a calculator one is available. Click on calculator button on the right side.

Having trouble? Try this hint.

Problem 2:

A block having the same dimensions is now put on the scale. What is the mass of this object?

Please enter your answer for Block II in the space provided:


grams

Having trouble? Try this hint.
Problem 3:

If both objects were put on the scale at the same time their total mass would be :


grams

Please continue to the next chapter on volume.

Or search for more specific information on Mass -- Density -- Volume

- - -Or return to the Science and Math Activity Home Page


Mass vs. Weight
Volume
Density
Density Challenge
Assessment
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