Describe the factors that determine whether two objects will balance each other
Predict how changing the position of a mass on the balance will affect the motion of the balance
Use a balance to the find the masses of unknown objects
Open the PhET Simulation
Choose “Intro” tab.
Play around with the simulation for a few minutes to understand/ explore the
functionalities of the different components.
To check if the wooden board is balanced, remove supports under the board by toggling the
switch at bottom of the screen to right.
Place 5 kg fire extinguisher at 2 m mark to the left of the pivot. Where should you place the 10 kg
trash can to balance the board? Show your calculations.
The trash can should be at the 1 m mark
Consider this situation
using the simulation: