Acceleration due to gravity

We had a go at determining the acceleration due to gravity. First time got this answer  Perfect results using @Pasco Light gate and Picket fence

 

Look into my eyes

 Using a close up camera to see how the iris works and using the @pasco human demo eye to see how it works in practice by putting in an iris in the eye. It is also useful to use a camera lens to show the camera T-stops in action.

3 Liquids

Three different liquids. All looked like water but they were not what the students expected. I was surprised how many students naturally assumed a clear liquid would be water.

Investigating the Iris

Needing to get up close and personal, looking at how light affects my iris

 

How the eye works

 By changing the amount of water in this @pasco lens used in the demo eye model the students were able to use the same lens to create both concave and convex lenses and gain a better idea how the eye worked.

Using chemix.org

Using Chemix.org to create the practical guidelines for some of the experiments. The students seem to easily follow the diagrams and set them up correctly. 

 

Resonance

 Making a lot of noise and some pretty shapes in the lab #iteachphysics