AuScience

The problems of the Junior Young Physicists' Tournament, JYPT are selected from the past problems of our parent competition: The International Young Physicists' Tournament, IYPT.

1. Rolling can
A can partially filled with water rolls down an inclined plane. Investigate its motion.

2. Elastic pendulum
Study and describe the behaviour of a pendulum where the bob is connected to a spring or an elastic cord rather than to a stiff rod.

3. String Telephone
How do the intensity of sound transmitted along a string telephone, and the quality of communication between the transmitter and receiver, depend upon the distance, tension in the line and other parameters? Design an optimal system.

4. Hydraulic jump
When a smooth column of water hits a horizontal plane, it flows out radially. At some radius, its height suddenly rises. Investigate the nature of the phenomenon. What happens if a liquid more viscous than water is used?

5. Pot and Ice
It is sometimes argued that to cool a pot effectively one should put ice above it. Investigate to what extent this is more effective than if the ice is put under the pot.