My project was the elevator I am using a fixed pulley because I do not want the pulley to turn around. Here is a video about different types of pulleys:
Simple Machines–Pulley and its types | Grade-4,5 | Science | TutWay | – YouTube
Procedure:
1. I got a box and cut the bottom
2. I put a dowel in between
3. I put in a string
4. I attached the string to the platform
5.I attached 3 cardboard pieces together to make another box
6. I attached the box to it
Materials:
1.dowel
2.string
3.cardboard
4.tape and hot glue
Hypothesis:
My hypothesis was that it would go up/down depending on how the string i knew this because pulleys work by spinning the thing that pulls something up(aka pulley) that is attached to the platform so when I spin it the platform goes up.
Results:
Conclusion
My conclusion was correct the pulley pulled up the platform and the system work however I did have to make some adjustments. My adjustments were:
1.Cutting a lot of the box to make space
2.Attaching two boxes together because one wasn’t enough
3.Creating support platforms for it to stand
4.Using a bigger dowel because the smaller one couldn’t fit
5. The first one broke so I had to remake most of the pulley system and add more support to stop it from falling