Materials:
• wooden doorstop
• two books
Procedure:
1. Find a partner to help you.
2. Stand the books up on a desk, side-by-side.
3. Put one hand on each of the books, pushing them together.
4. Have a partner put the narrow end of the doorstop between the books.
5. Have partner gently push down.
Which statement best describes what Madison is trying to model?
(1 point)
Responses
She is trying to model how screws and inclined planes are related.
She is trying to model how screws and inclined planes are related.
She is trying to model a different type of lever.
She is trying to model a different type of lever.
She is trying to model how a wheel and axle can make work seem easier.
She is trying to model how a wheel and axle can make work seem easier.
She is trying to model how a wedge works.
1 answer
The statement that best describes what Madison is trying to model is:
She is trying to model how a wedge works.
In the procedure described, the doorstop is functioning as a wedge, which is a simple machine that helps to split or lift objects by converting a downward force into two lateral forces.
