CoMo Science

Category: science club

  • Greek letters we’ve used

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    Greek letters are commonly used in science. There are 24 Greek letters. Here are the ones we have discussed recently. Greek letter Name Uses α alpha alpha particles, indicates the first angle of a triangleopposite the side a β beta beta particles, indicates the second angle of a triangle opposite the side b γ gamma…

  • Sound

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    Learning objectives: Understand the difference between longitudinal and transverse waves Know that frequency is measured in units called Hertz, which is abbreviated Hz, which represents the number of cycles/second. Know that humans can hear frequencies from about 20 Hz to 20,000 Hz. Understand that the amplitude of a sound wave determines how loud it is.…

  • Amplitude & frequency

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    A discussion of amplitude and frequency using the motion of a spring and a pendulum as an example

  • Timer circuit

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    Building a 555 timer circuit as an introduction to electronic circuits and using a breadboard.

  • Angles & Sine Function

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    Learning Objectives: The sine function relates length of the opposite side of the triangle to the longest side, which is called the hypotenuse. sin(0°) = 0 since at 0° the length of the opposite side is 0. sin(90°) = 1 since at 90° the length of the opposite side equals the length of the hypotenuse.…