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Circular Motion

Simple Pendulum

To begin the experiment we had one lab partner pull the end of the white paper at a constant rate. We found that the height of the wave was 36 cm. and that the distance it took the wave to oscillate was 39 cm. We believe the energy is in the line the created.

Cups Lab

Uniform motion- the bob travels across in a circular motion at a constant speed

  • Newton's first and second laws maintain the bob's constant speed and direction

TED

The roller with the tops taped together, the center mass and gravity are the same. This allows the roller to remain centered on its path.

Models of Light and Particle Waves

Radiometer

radiant energy is used to heat things and people

1. Smart Materials are man made materials that have at least one property that can be changed in a controlled fashion by an external force.

2. One example of how technology is changing is through piezoelectric materials. Piezoelectric materials produce voltage under stress. These self-healing devices allow products to last longer because they can continually repair and charge themselves.

Einstein created the light quantum theory, which stated that light exists as tiny particles that obey the same laws of physics as other masses do.

Does SPF 50 really work?

SPF0=1.31 nA

SPF15=1.26 nA

SPF30=1.19 nA

SPF50=.97 nA

SPF50 has the lowest (nA), which gives it a higher frequency, which therefore makes it more effective in blocking the sun’s rays.

-Intensity and Distance is inversely related

-To explain the concept of radiometer I would compare it to the earth and their seasons. In the summer the earth is closer to the sun making it warmer and in the winter the sun is further away from the sun and this simulates the rotation od the radiometer flaps due to moving gas molecules

This design is used by railroads because it allows the train to remain on the track. The wheels use the same design as the cups taped on the top.

Radiometers can be used to measure radiant energy and to be transferred to mechanical energy

Simple Harmonic Motion

Circular Motion in Our Lives

  • F=-kx
  • Restoring force is directly proportional to displacement
  • Periodic

- Entertainment

- Athletics

- Transportation

Entertainment

Athletics

Transportation

Weight is very involved with shot put.

Mass of the car and energy are related to circular motion

E= mc^2

- The thrill/speed of roller coasters and other rides in an amusement park can be calculated with this equation

- The electricty needed to power the ride and the equipment involved to make the ride.

Circular motion is in the steps to throwing the shot put - creates inertia - energy

Circular Force Lab

Demi Kontos, Matt Casale, Robert Errico, Eric Lewis, Kengo Kawahara

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