Gear Ratios
How do gears work? How do the number of teeth affect the turns of a gear machine? A gear is a wheel with teeth that interlock with matching teeth on another...
Designing Gear Machines
How do you make a large gear ratio? How are gear machines designed? Your challenge is to design machines with the following ratios.
Mechanical Advantage of Gears
How do gears create mechanical advantage? How do gear machines, such as a transmission or winch, operate?
Resonance
When periodic forces are applied to a system that can oscillate, the resulting motion can vary tremendously. If the frequency of the force matches a natural...
Waves
What is a wave and what are the properties of waves? A wave is a traveling form of energy that carries oscillations from one place in space to another....
Interference
How does the amplitude of a wave change when it encounters another wave? When multiple waves exist in the same place at the same time, interference occurs....
Resonance and Sound
How do we create specific frequencies of sound, such as in music? A guitar string vibrates at its natural frequencies. Other objects, such as wine glasses...
Design a Musical Instrument
Create a musical instrument that plays the frequencies of all 8 notes of a major scale, has working parts consisting of metal bar (or tube) with lengths...
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