Year 5
This week in Year 5, we finished our Forces unit by creating our own levers! We learnt that levers are simple machines which makes things easier by helping us lift things that would be too heavy to lift on our own. This is by pushing down one end of the lever to make the other side to go up.
For our experiment, we needed to design our own levers to help Miss Ahmed decide where she will need to position the fulcrum so she can lift the large, heavy rocks in her garden. We made a fulcrum using lollypop sticks, used plastic cups to hold the load on one end and used the other cup to apply force on the opposite end. To ensure that we measured force accurately, we used marbles of the same size and weight and determined how many marbles were needed to lift the load.
Here is what we found out when we changed the position of the fulcrum:
Clancy, “The fulcrum should be closer to the load because it was easier to lift the marbles.”
Chloe, “The fulcrum should be closer to the load because we only needed 2 marbles to lift it up.”
Macy, “The fulcrum should not be too far from the load because it took 24 marbles to lift it up.”
Lorenz, "A fulcrum is important as it helps create balance.~
In conclusion, the further the fulcrum is from the load, the harder it is to lift the load. The closer the fulcrum is from the load, the easier it is to lift the load.
Well done to Year 5 for a fantastic start to the school year! This term has been very exciting and the children have shown tremendous kindness to one another, perseverance and determination as we adjust to the new normal. We are all very proud of you, Year 5! Keep up the excellent work and we look forward to seeing you after half term, on Tuesday 2nd November.