Monday, 3 July 2017

Science blog week 6

Chair Pulley Week 6
What I've done
I made a chair pulley with ruby and Emma. We got two chairs, string and a basket.
We threaded the string through the basket then onto the chairs.
How it worked was two people would sit on a chair each then one person would pull 
the rope and their other would push the rope.

What I found out
I found out that there are many different ways to make a chair pulley and there are lots of different pulleys.
We experimented on the weight of the basket and when it was heavier it dragged on the ground, so I found out that when it drags on the ground the weight affects the way it moves and it won't work properly. 

What I wonder 
I wonder if we had the chai pulley hire and the basket heavier, since the basket can't drag on the ground but it would weigh the string down then maybe it would go slower or wouldn't work as well?

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