Hypothesis

Hypothesis: I think it will be much easier to lift it with the stick than to lift it with the string because the meter stick is a lever and makes it easier by distributing the weight. Jacqui

It will be easier to ligt the brick by using the metre stick. It would be lighter than rising it straight up, if you use a lever.Ryan

By lifting the brick straight up, I think that it would be really hard and with the lever, I think it will be much easier. Merridy

I thing that it will be heavier when we lift it without the meter stick. I think it will be easier with the meter stick because the meter stick is a lever.Erin

I think it will be easier to pull with the meter stick that the string with the brick.Derek

Observations: It was much harder to lift the bricks alone than to use a meter stick {lever}. It was noticeably easier with the lever. Jacqui

The brick was heavier lifting it straight up. There was a noticeable weight change when we used a meter stick. Ryan

I saw that lifting the brick with the lever{meter stick} was so much easier than just lifting it straight up. Merridy

It was a lot harder to lith the brick without the lever. You could tell that it was easier to lift the brick with the lever. Erin

It was way heaver to lift up the brick with the string than the brick tied with string to the meter stick. Derek

Discussion: The metre stick is a second class lever. The table acts as the fulcrum in this project. So when the lever is pulled the table(fulcrum) is it's touch base. A lever is a second class lever when the weight (load) is between the fulcrum and the effort force (the effeort you have given to the stick) A second class lever doesn't change the direction of the force, the load moves in the same dicrection your hand is going. This type of lever still requires less force to raise the load than if you lifted it without the lever.Jacqui,Erin,Ryan,Merridy,Derek