Transcript Triple Beam Balance

How to Use a Triple-Beam
Balance
Next
Parts of a Balance
Zero
Mark
Sliders
Pan
Thumbscrew
Back
Balance Setup



Move all three sliders so that they read ‘zero’.
Make sure that there is nothing on the pan
and that it is clean.
Check to see if the balance reads zero.
Balance reads zero – click here
Balance doesn’t read zero – click here
Back
Show the parts of a balance
Balance Setup

Your balance isn’t reading zero so you need to
turn the thumbscrew to adjust the balance until
it reads zero
Next
Back
Show the parts of a balance
Balance Setup

Your balance is ready to measure. Place object to
be weighed on the pan.
Next
Back
Show the parts of a balance
Moving Sliders



Move the sliders, beginning with the largest.
When moving a slider causes the balance to tip,
move the slider back to the previous position.
Move the next slider until it tips the balance.
Place is in the previous position.
Move the final slider until the balance reads zero.
Next
Back
Show the parts of a balance
Reading Sliders
 Read each of the sliders and add their
weights together.
The sliders indicate the mass is:
373 g
Back
Next
Reading Sliders
 When you read the last slider, notice
that the smaller lines represent
tenths.
Back
Next
Reading Sliders
 This measurement is past the third
line following the 3 on small slider.
This indicates a mass of:
373.3 g
Back
Next
Reading Sliders
 To maximize the number of digits in
the measurement we estimate the last
number. Since the slider is actually
about halfway between 3.3 and 3.4, we
record 3.35
373.35 g
Back
Next
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521.2 grams
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48.6 grams
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253.9 grams
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418.1 grams
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57.1 grams
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112.7 grams
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28.1 grams
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327.2 grams
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115.8 grams
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