The LHU Physics Club
Demos at the Lock Haven Catholic School
Thursday-29-Nov-2007

Paticipants:

Jose Baltazar (3-2 Engineering)
Craolyn Braun (Elem Ed)
Ryan Muschick (Physics)
DJ Scott (Sec-Ed Physics)
Ray Siedlecki (Physics)
John Reid (faculty)
Click on the pictures below to get a larger version.

DJ gets everyone shaking their hands in the air to simulate the thermal motions of molecules.

Ryan thrills everyone as he talks about rotational motion while swinging water over all our heads.

DJ and Carolyn spend a while talking about angular motion. As Carolyn turns around and around moving her arms in and out and flipping a spinning wheel, DJ discusses the principles. It makes us all dizzy with the excitement of science.

Jose talks about conservation of angular momentum using a tornaodo bottle.

Jose and Carolyn demonstrate inertia. Carolyn does the table cloth trick perfectly. Jose has fun knocking pennies out from under a stack.

The kids joing in for an inertial demo. They all try to flick a plaing card out from under a penny.

Lot of resonance demos.
Ray shows how you get different sounds when blowing into a bottle by adding difference amounts of water.
DJ is holding different lengths of chains and can make any one of them swing by moving his hands at the right rate for each one.
Carolyn talks about patterns set up in a long spring when shaken at just the right rates.

Ryan hands out a bunch of cardboard tubes and shows how one can hear different sounds from the different lengths.

The kids join in a fun pressure demos where they try to blow over a dime causing a low pressure region, which causes the dime to lift up and hopefully fly into a cup.

Ryan show the kids how they can check their reaction time by seeing how far a ruler will fall before it is caught. Everyone joins in to try it for themselves.

DJ talks about sounds and resonance using a tunning fork. He shows how the tunning fork gets louder when placed on a table and how it also gets louder when placed near his mouth when his mouth is opened just the right amount.

Ray talks about energy and momemtum by dropping two balls with one resting on the other. The one on top goes very high after the pair hit the floor.

John shows how a little water tension over a big area is strong enough to hold up an upside down jar of water.