Suitable For
Grade 4
Difficulty
2
Time Required
<12 Hours
Supervision
Advised
What’s it about?
Do you think you are stronger than two of your friends? No? You may be stronger than you realize! With a little help from a simple pulley system designed to magnify effort, or pull, you may just be able to prove that you are stronger than two of your friends put together.
Topics covered
Pulley system, Block and tackle
What will I need?
- ROPE
- 2x BROOM STICKS
- 2x FRIENDS
Procedure (Method)
Unfortunately, this section is only available in the e-book version of the project.
How does it work?
Unfortunately, this section is only available in the e-book version of the project.
This science experiment works because the broom handles and rope has been put together to form of a common device called a pulley system, a simple device that magnifies perceived effort or pull forces. A pulley will help you lift a heavy load with little effort, in this case overcoming the heavy load (the big pull force of your two friends) with little effort (The little pull on the end of the rope).
Like the sound of it?
Why not check out the full worksheet in one of our popular e-books?
This particular science project can be found in any of the following Experiland e-books:
Experiland e-books contain detailed steps, including illustrations, to complete the science projects from start to finish.
