In this National STEM Learning Centre and Network video, Simon Quinnell...

This learning episode from the Institute of Physics covers the constructive and destructive interference of waves.

Through discussion, student experiments and teacher demonstrations, students look at:
* simple interference of waves
* waves from two sound sources
* demonstration of Young's...

Produced by the Institute of Physics, this learning episode uses demonstrations, experiments and questions to help students learn about electromagnetic fields. These consider their strength and direction.

The activities include:
• demonstrating the field around a permanent magnet
• field...

Produced by the Institute of Physics, through demonstrations, discussions and worked examples, students consider the use of lasers and the underlying theory of how they work.

The activities in this learning episode look at:
* demonstrating a laser beam
* the uses of lasers
* safety with...

This learning episode, from the Institute of Physics, help students to develop their idea of electromagnetic radiation and polarisation. The basic ideas are developed through demonstrations and experiments. The approach is non-mathematical. The activities include: * using polarising filters to observe polarisation...

Produced by the Institute of Physics, these discussions and demonstrations show that in a generator, motion of a conductor in a magnetic field induces an electromotive force (emf). In a transformer, it is the changing field that induces an emf in a fixed conductor.

The activities in this learning episode...

Through demonstrations, discussions and worked examples, students are introduced to the phenomenon of wave-particle duality. Students learn that electrons, which are often thought of as particles, can sometimes behave as waves.

From the Institute of Physics, this learning episode introduces the ubiquitous nature of radioactivity and considers its detection. It draws on students’ previous knowledge, and emphasizes the importance of technical terminology.

The activities include:
• demonstrating the detection of background...

In this learning episode, from the Institute of Physics, students use discussion, demonstration and worked examples to look at the exponential decay and radioactive half-life of a range of nuclides. These include sources of alpha, beta and gamma radiation.

The activities in this learning episode include:...

In this learning episode, from the Institute of Physics, students look at standing waves in musical instruments and measure their wavelength. Microwaves are used to estimate the speed of light.

The activities include:
* demonstrating waves in a rope
* how superposition results in standing waves...

In this demonstration of a displacement reaction, a piece of foil in the shape of a Christmas tree is placed in lead nitrate solution. Within a few minutes the tree becomes covered with sparkling crystals of lead.

From the Institute of Physics, this learning episode introduce students to the importance of circular motion and the need for a centripetal force to keep an object moving along a circular path. The activities include: * observing circular motion * whirling bucket and centripetal force * discussing examples of...