For the topic of Thermal Physics, JC1 students can try to make sense of p-V diagrams using the following exercise, which does not involve any calculation. They will need to fill in the cells in the table below with any of the three (+, - or 0) to indicate whether there is heat transfer, work done on the gas, or a change in internal energy.

# Category: Blog

Musings

## Hooke's Law

Here are two applets students may like to try:

A. The first is a simple "experiment" showing that the extension of a spring is proportional to the force applied:

http://www.absorblearning.com/media/attachment.action?quick=5l&att=394

B. For the second applet, you can try:

- looking for the unknown masses.
- observing the potential energy at different extensions of each spring.
- varying the gravitational field strength.

http://phet.colorado.edu/sims/mass-spring-lab/mass-spring-lab_en.html