Welcome to practical physicsPracticle physics - practical activities designed for use in the classroom with 11 to 19 year olds

Friction, turning and other effects

This collection has experiments where forces cause a variety of effects. There are instances of resistive forces - friction, solids falling through fluids such as air or liquids. Forces also cause objects to rotate. Insight into the lever principle is empowering because of its great range of applications. 
Surface tension and the Bernoulli effect can be intriguing. They call out for explanation and so, at advanced level, easily lead on to discussion of relevant physical theory.


Friction between solid surfaces

Falling through water

Falling through air

Falling through a high viscosity liquid

Balancing a beam

The game of Sym

A see-saw weighing device

Turning effects and a clock-spring

Surface tension

More surface tension effects

Surface tension: aniline dripping in water

Capillary action

Bernoulli principle


Related Guidance

Solving problems – force or energy?