Force

Materials:
Long piece of regular wood
a short piece of wood covered with sand paper on one side.
a protractor
caculations
Procedure:
We figured out at what angle the short peice of wood would slide down the long piece of wood on the smooth side. We also figured out the angle at which the sand paper side of the wood slid down the long piece of wood.
Results:
With the block weighing 160 grams. the regular board slide down the long piece at the angle of 22 degrees. the sand paper side of the block slide down the long board at an angle of 72 degrees.

Click link for work
https://docs.google.com/document/d/1xPdwACqlIdCP_0ZQ4-FrxPAk6dEnwGxpLNv5Sbfcl8M/edit?hl=en_US#

Inertia Trick

For our interita trick we are going "The Egg Drop Trick"

Procedure:

Fill a large glass about three-quarter of the way with water. Center a pie pan on the top of the glass. Center a cardboard tube (from paper towels or toilet paper) over the cup, in the pie pan. Finally, rest a raw egg on the top of the tube.
The glass, pie pan, tube and egg are at rest. With a quick striking motion, shove the edge of the pan so that the pan and the cardboard tube fly out of the way. The force is exerted on the pan and the tube, but not the glass or the egg. The glass will stay right where it is. Without support, the egg will succumb to the force of gravity and drop right into the cup.

Acceleration

We were studying acceleration. We had a partner and our partner would sit in the chair and the first time down the hallway we would push them slowly. When we came back we would push them really, really fast. The second time we did it we added 35 pounds to the chair and pushed them down the hallway. When we came back we just pushed an empty chair.

We learned that we used more force when we were pushing our partner really really fast than when we were pushing them slow. We also used more force when we pushed our partner with the 35 pounds than we did when we pushed the empty chair.