First Class Lever

First Class Lever

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Simple Machines - First Class Lever

Language: English
Description: In this simulation, experiment with putting weights on each side of the balance. Start with 1KG on each side.

With these weights, how can you make the left side go up? How about the right side?

Experiment with different combinations. Can you use this lever to lift the 5 KG box? How is it done?

Why is it nearly impossible to get the balance to lay perfectly flat?

Target: Key Stage 2
Category: Laboratory
Discipline: Static forces
Learning objectives:

Students will understand how the distance on a lever between the load and the fulcrum affects the effort needed to life the load.

In class: This lesson should follow a discussion of levers, including the term fulcrum. It should be clear this is only one type of lever.
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Students will use the Move tool (M) to interact with the box-shaped weights.