## Listing all results (123)

### Episode 301: Recognising Simple Harmonic Motion

Through demonstrations and discussions, this learning episode from the Institute of Physics helps students to understand the main features of simple harmonic motion. This is in preparation to moving to a more mathematical description.

Activities include:

* observing simple harmonic motion (SHM)...

### Episode 302: Simple Harmonic Motion Getting Mathematical

Produced by the Institute of Physics, this learning episode assists students to use a mathematical approach to simple harmonic motion, starting from its physical basis and the forces involved.

In the activities, students look at:

* restoring forces in simple harmonic motion (SHM)

* graphical...

### Episode 305: Energy in Simple Harmonic Motion

Produced by the Institute of Physics, this learning episode enables students to appreciate that there is a continuous interchange between potential and kinetic energy during simple harmonic motion. Students are also shown the mathematical basis for calculating energy.

The activities include:

•...

### Episode 306: Damped Simple Harmonic Motion

From the Institute of Physics, this learning episode will help students to see how energy moves from an oscillating system and how this results in a decrease in amplitude that follows an exponential decay pattern.

The activities include:

• observing water oscillating in a u-tube

• the motion of...

### Episode 309: Generating Waves

From the Institute of Physics, this learning episode introduces the idea that vibrations can give rise to disturbances travelling outwards, i.e. to progressive waves. This illustrates some of the basic properties of waves.

The activities include:

• investigating transverse and longitudinal waves in a...

### Episode 310: Wave Graphs

In this learning episode, from the Institute of Physics, students interpret graphs of waves to understand concepts such as wavelength, frequency and phase.

The activities in this episode include:

• plotting displacement and drawing longitudinal waves

• considering phase

• understanding...

### Episode 313: Polarisation

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...

### Episode 315: The Inverse Square Law

In this learning episode, produced by the Institute of Physics, students investigate how the intensity of radiation decreases with distance from the source.

The activities include:

* demonstration and discussion on how radiation spreads

* worked example to illustrate thinking in proportions...

### Episode 317: Reflection and Refraction of Waves

This learning episode, from the Institute of Physics, contains activities in which students look at reflection, refraction and Snell's law.

Through discussion, demonstration and practical experiments, students look at:

* reflection and refraction with a ripple tank

* the 'marching soldiers'...

### Episode 318: Total Internal Reflection

Produced by the Institute of Physics, this learning episode helps students to observe total internal reflection (TIR) as a consequence of refraction. Students use a semi-circular block to observe TIR and see how a fibre optic can be used to transmit information.

The activities include:

* ray tracing...