**Center of Mass**

PS.5.3.3 Determine the mass of solids

PS.6.4.2 Investigate the relationship between force and mass

PS.6.7.2- P.6.PS.7 Design and construct investigations using Newton's first law of motion.

MF.1.P.7 Draw free body diagrams of forces acting on an object

MF.1.P.9 Apply Newton's first law to show balanced and unbalanced forces

MF.3.P.2 Calculate the magnitude of the torque on an object.
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IFI Balance board, Explore masses and lever arms, center of mass and torque.

PS.6.5.2 Coduct investigations using levers

PS.5.8.2 _ PS.5.8.4Explain the structure of atoms, and create atomic models o common elements.

C.1.PS.4 Illustrate the placement of electrons in the first 20 elements.

Energy level model, Find the center of mass of a chair. and create an energy level diagram for a chair.

MF.1.P.7 Draw free body diagrams of forces acting on an object

Paper Airplane Science, Find the center of mass and center of pressure of an airplane.

Styrofoam Airplane, create an airplane from a styrofoam plate, learn to balance the plate on air.

Glide Ratio, measure the distance a plane glides and divide by the distance it falls to calculate the glide ratio.

MF.1.P.7 Draw free body diagrams of forces acting on an object

Drop a slinky, Drop a slinky, observe what happens to the top, the bottom and the center of mass.

PS.6.5.2 Coduct investigations using Pulleys

Bicycle gear mathematics, Just as in a lever, the force times the distance in a bicycle remains the same througout the transmission system.

Scientific Explorations with Paul Doherty |
7 January 2008 |