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MVP — interactive sketch; a fuller lab is coming later.

Mass with a balance

Required: use a tray balance to measure solid or liquid mass.

Measurement (junior)Length, time, mass, density, and basic measurement skills.

Start here

Mass with a balance

Balance: zero, then add weights + rider to read mass. This “Mass with a balance” page is an MVP interactive sketch — formulas, controls, and live readouts in the browser; a fuller bench may follow.

Balance: zero, then add weights + rider to read mass.

Key formulas

  • m=m_w+m_r

How to use

  1. Adjust parameters in the left panel.
  2. Use play / pause and speed controls.
  3. Match right-side readouts to the formulas.
  4. Reset to return to the initial state.

Applications

  • Mass with a balance: Balance: zero, then add weights + rider to read mass.
  • In class, tune parameters for “Mass with a balance”, then check against the textbook result.

FAQ

What does MVP mean on this page?

An interactive sketch with formulas and parameters. Polished Ready labs are the full bench experience.

What does the “Mass with a balance” lab practice?

Tune parameters and match readouts to the “Mass with a balance” relations — useful for prep and demos.

Why estimate beyond the smallest division?

It adds a significant figure and reminds you every reading has uncertainty.

Why average repeated measurements?

Averages reduce random error so the result sits closer to the true value.

Try the lab