Past CaYPT

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2019

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Problems

DAY 1

Filling Up a Bottle

When a vertical water jet enters a bottle, sound may be produced, and, as the bottle is filled up, the properties of the sound may change. Investigate how relevant parameters of the system such as speed and dimensions of the jet, size and shape of the bottle or water temperature affect the sound.

Loud Voices

A simple cone-shaped or horn-shaped object can be used to optimise the transfer of the human voice to a remote listener. Investigate how the resulting acoustic output depends on relevant parameters such as the shape, size, and material of the cone.

Looping Pendulum

Connect two loads, one heavy and one light, with a string over a horizontal rod and lift up the heavy load by pulling down the light one. Release the light load and it will sweep around the rod, keeping the heavy load from falling to the ground. Investigate this phenomenon.

Sinking Bubbles

When a container of liquid (e.g. water) oscillates vertically, it is possible that bubbles in the liquid move downwards instead of rising. Investigate this phenomenon.

Popsicle Chain Reaction

Wooden Popsicle sticks can be joined together by slightly bending each of them so that they interlock in a so-called “cobra weave” chain. When such a chain has one of its ends released, the sticks rapidly dislodge, and a wave front travels along the chain. Investigate the phenomenon.

DAY 2

Undertone Sound

Allow a tuning fork or another simple oscillator to vibrate against a sheet of paper with a weak contact between them. The frequency of the resulting sound can have a lower frequency than the tuning fork’s fundamental frequency. Investigate this phenomenon.

Funnel and Ball

A light ball (e.g. ping-pong ball) can be picked up with a funnel by blowing air through it. Explain the phenomenon and investigate the relevant parameters.

Hurricane Balls

Two steel balls that are joined together can be spun at incredibly high frequency by first spinning them by hand and then blowing on them through a tube, e.g. a drinking straw. Explain and investigate this phenomenon.

Suspended Water Wheel

Carefully place a light object, such as a Styrofoam disk, near the edge of a water jet aiming upwards. Under certain conditions, the object will start to spin while being suspended. Investigate this phenomenon and its stability to external perturbations.

Newton's Cradle

The oscillations of a Newton’s cradle will gradually decay until the spheres come to rest. Investigate how the rate of decay of a Newton’s cradle depends on relevant parameters such as the number, material, and alignment of the spheres.

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Student Resources

Check out our YouTube channel and Facebook page!

Winners

Congratulations to this year’s winner, Team Pentaquarks! 

2018

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Problems

Click HERE for 2018 Regional and National Questions

 

Winners

Congratulations to the winners are CaYPT 2018, team Higgs Boson.

2017

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Problems

Click HERE for 2017 Regional and National Questions

 

Winners

The winners of CaYPT 2017 were Jim Chen, Vivian He, Patrick Prochazka, Tian Yu, and Richard Zhu. 

Congratulations to the 2017 Canadian National Team for ranking 14th and receiving a bronze medal at the 30th IYPT in Singapore!

CaYPT gave me the opportunity to experience both the experimental and theoretical aspects of scientific research. One of the most beneficial parts of the competition, in my opinion, is its ‘debating’ format. Putting myself into roles of the reporter and the opposer pushed me to think of problems from a variety of different view points.” – Vivian He