Lauren Dark & Ashleigh Taylor's Science Team.

DAY THREE:

On our third visit to Mrs. Dark's class to Dadeville Elementary School, we taught her second grade class about rotational inertia with the following experiments.

1) Ramp Races- First we set up a ramp out of plywood. Then we got multiple round objects and explained which would win the race.
    -How can you predict this? Objects with most of their mass towards the center had a smaller rotational inertia, which won the race.


2) Wheel of Physics- First we picked a volunteer from the classroom. Tell the student to stand on the specially made tired. Spin the child with their arms out [making a human +]. as the child is spinning tell them to place their arms down toward their sides [|]. Repeat with weight in each hand.
    -Why does the child speed up? With the arms down the child increases the center of mass which will increase the rotational speed; therefore, making the rotational inertia smaller.