- Aerated Water
- Air Engine
- Air Table
- Are you Hot or Not?
- Balancing Act
- Bending Beams
- Block the gap
- Braille
- Bridge the Gap
- Chalk Wall
- Changing Faces
- Chaotic Motion
- Circle of Discovery
- Circle of Discovery- The Internet
- Circle of Discovery-Bridge Design
- Circle of Discovery-Ideas hub
- Circle of Discovery-Internet
- Circle of Discovery-Medicine
- Circle of Discovery-photography
- Circle of Discovery: Design - Earthquake
- Circulation
- Colour Wheel
- Communication Codes
- Communication Dishes
- Computer
- Crystallography
- Digestive System
- Down the Drain
- Electromagnetic Spectrum
- Fibre Optics
- Flight Simulator
- Gear Table
- Handshake Mirror
- Harmonograph
- High Flyer
- Hit the Target
- Horizontal Periscope
- Human Battery
- It's Electric
- Larger Than Life
- Lift Me Pull You
- Light Table
- Lock Box
- Making Waves
- Mini Harmonograph
- Mobile Phone
- Move It
- Nervous System
- Newtons Cradle
- Organ Pipe
- Organ Pipe Tune
- Oscillating Pendulums
- Pendulums
- People Power
- Periscope
- Prove Pythagoras
- Radar
- Radio Station
- Reactable
- Reflection Refraction
- Robot Arm
- Science of Sport
- Sensation
- Simple Camera
- Simple Circuits
- Smoke Tunnel
- Solar Energy
- Sound Waves
- Structures and Stresses
- Telescope
- The Exhibition
- The Eye
- The Lung and Chest Cavity
- The Wheel Race
- Thermal Imager
- Tornado
- Tower of Hanoi
- Universe Wall
- Up and Down
- Vertical Periscope
- Viscosity
- Viscosity Plungers
- Volume and Mass
- Vortex
- Watch Your Waste
- Weight Lifter
- Wheels Within Wheels
- Wind Tunnel
Making Waves
Making Waves demonstrates londitudinal and transverse waves
Activity.... Do - Think - Learn
Making wave shows how 2 different waves behave. Pull or push the black knob and watch a wave travel back and forth.
What happens to the spring inside?
Twist the red knob slightly, let go and watch.
What happens?
The Science Bit
Sound waves are liner or longitudinal waves. The energy is passed onto the next particle by vibrations. The spring moves slightly backwards and forwards as the energy travels down the spring. This is what happens to particles as energy is past down a wave. Examples of longitudinal waves are sound, ultra sound and earthquakes.
Transverse and torsional waves are represented by the rods with the red balls on the end. The movement in this type of wave is at right angle to the direction that the energy is travelling in the wave.
QCA:
Unit 5F – Changing sounds
- That vibrations from sound sources travel through different materials to the ear
- To make careful observations to identify the types of material through which sound can travels
- That some materials are effective in preventing vibrations from sound sources reaching the ear
- That sounds are made when objects or materials vibrate
- That sounds can be made by air vibrating
Last Modified: 28/07/2011
