Using a Baffle to improve a ripple tank results

 One of the problems with using a ripple tank is unwanted reflections. Simply placing a piece of paper towel stop the unwanted reflections leading to better and clearer results. #iteachphysics

Using a Demo eye

Using the @pascoscientific demo eye to practically look at how the lens in the eye works by changing shape, and looking at different lenses for long and short sightedness. I really great bit of kit. #iteachphysics

Repairing Lung Machine

After a few years of use my lung demo broke, but with a new y piece, new balloons and new elastic bands and gaffer tape the lung demo has been rebuilt and is again working well, to demo to more students.

Using Mechanics to help with A level Maths

 Doing practical mechanics to help understand A level Maths. Playing with practical mechanics brings a level of realism to the Physics Maths problems, so the students can see and feel what is going on.

Newtons Second Law

 

One of my favourites - which ball will hit the ground first. Even with the evidence some students still don't believe it. Using a strobe to get the proof.

Using a prism

 Some brief bright sunshine through a crack in the curtains through a prism across the classroom wall The picture gave us about 15 different colours when seen as a jpeg #iteachphysics

Inverted test tube retains liquid

 Sometimes it is the little things that amaze students. During electrolysis they filled test tubes with solution, inverted them and were surprised when the liquid did not come out.

As to why this causes quite a discussion