Crocodile Clips Yenka Light and Sound

Yenka Light and Sound covers all of the optics and waves simulation that was found in Crocodile Physics.

It lets you experiment with water, sound or EM waves, as well as modelling ray diagrams for optical systems.
To help you get started, we've got a wide range of classroom content, with ready-made models, and a set of training videos.

Optics
• A powerful optics simulator, with a range of components including lenses, prisms, mirrors and light sources, lets you model ray diagrams.
• You can import your own images and investigate how they look when viewed in lenses in mirrors. As shown below, intensity and blurring are modelled.
• The rays from the object are drawn as you simulate, letting you trace their path through the optical system.
• Properties for all of the optical components can be changed, either by dragging with the mouse or by typing in new values. You can also position the components however you like - a true virtual workbench.

Waves
• Yenka lets you take a top-down view of wave propagation, and study key phenomena - such as refraction, interference, diffraction and reflection - with water, sound or EM waves.
• Point or plane wave sources, and a moving source whose velocity and bearing you can control, generate waves. You can also control the frequency, phase and amplitude of each source.
• Add obstacles, reflectors and slits to investigate reflection, refraction, diffraction and interference. Position these components wherever you want, and control properties like size, orientation, damping, slit spacing and width, and the material from which each is made.

Note- Crocodile Physics and Crocodilia for Crocodile Physics have now been replaced by Yenka Light and Sound, Yenka Motion and Yenka Electricity.



Now, there's "Instant" Yenka, a simplified way to access Yenka at home.



What has changed?
• It is not necessary to open a Yenka account and to use an activation key.
• We have taken away the teacher confirmation process (which made a lot of teachers give up).
• Students can download and activate the software themselves.
• Hobbyists and home-educators can also use Yenka at home for free.

How does it work? Follow these steps:
• Download the new Yenka plug-in from our website: http://www.yenka.com/downloads - Select "Home License" within the software.
• Enter your email address and occupation.
• Start using Yenka.

Only teachers may request home licences. If you are another member of staff, you can make a request on behalf of a teacher - but you must use their details and email address.
The teacher will receive two activation keys:
• One for teachers at your school.
• Another for students at your school.



Yenka System Requirements


Windows
The system requirements for running Yenka on a Windows PC are:
Windows XP (32-bit), Vista (32-bit) or later
Pentium III, 1 GHz or higher
256MB RAM (with virtual memory switched on)
Graphics card with OpenGL support and up-to-date drivers. We recommend at least 32MB of graphics card memory.
16-bit soundcard optional

Mac
The system requirements for running Yenka on an Apple Mac are:
OS X 10.4 or later
1.25 GHz PowerPC G4 or higher, or any Intel Mac
256MB RAM

Recommendations to enhance performance
As Yenka is a complex program that combines both 2D and 3D graphics into a single simulator, its performance may vary significantly, depending on the hardware specification of your PC.

Upgrade your graphics card
The most effective way to increase performance is to upgrade your graphics card. Ideally, your graphics card should have its own graphics memory, rather than using shared system memory. In addition to this, there are a number of graphics cards that have known issues with Yenka. Please consult our known issues section to find out more about these.

Update your driver software
To get the most out of your hardware, you should ensure that you have the most up-to-date driver software. This is especially important for graphics drivers, where improvements to the driver may have a significant impact on your 3D graphics performance.

Add Memory (RAM)
Other than upgrading your graphics card, adding more memory is the best way to improve performance, particularly if your computer is at or near the system requirements.

A Teacher License lets a named teacher use a Yenka product on one computer at a time. The licence also allows the teacher's students to use that product on other computers, but only while the teacher is present. This is limited to 40 students at a time.

A Site License permits employees and students of a school to use a Yenka product on all computers located at a single postal address. For very large schools (more than 2000 students) or for remote teaching please contact us for prices.