How to use a triple-beam-balance

Mrs. Halaw

Parts of a balance- Pan - Pointer

- Riders - Beams

- Adjustment knob

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

Step #1

Clean the pan.

Step #2If the pointer is not

at zero, have the teacher zero the

balance.

Step #3Place an object in the center of

the pan.

Step #4Move the middle rider over a notch until the pointer drops. Then

move it back one notch.

Step #5Repeat the

previous step with the back rider.

Step #6Move the front

rider over until the pointer is at zero.

Step #7Add the values of the three beams to

determine the mass.

There will always be two decimal places in your answer. The last

one must always end in a 0 or a 5.