Bed of Nails

Materials:

1. plywood

2. nails

3. hammer

4. ruler

5.pencil

Procedures:

1. cut your plywood on a 10" by 10"

2. Mark with the ruler and pencil every 3/4 of an inch on the board.

3. Mark the points of the intersecting lines with dots

4. Hammer the nails in.

5. Test a balloon by placing it on top of the nails with a book on top.

Physics Behind the Project:

Area is propotional to the pressure. Which we can understand from the formula, The wider the area, the less pressure will be applied on the surface. As a result of that magic of the bed of nails will be revealed with physics.

F (Force) = P (Pressure) / A (Area)

Results:

As you test your balloon by poking it with just simply one nail the balloon pops. Once you test the balloon on the bed of nails the balloon compresses but it does not pop.

Conclusion:

Through my experiment i was able to learn that as your area increases and your force remains the same your pressure decreases. When your pressure decreases it has a less possibility of having an effect on the object being put on it.