- 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
Newtons Cradle
Newton’s Cradle demonstrates Newton's 1st and 3rd Laws
Activity.... Do - Think - Learn
Momentum is related to the amount of energy a moving object has. It depends on the mass and velocity of the object.
What will happen when one ball hits the other four?
Pull the string to make one ball move.
Try pulling different strings to make more balls move.
Does the same happen each time?
Why do the balls move the way they do?
The Science Bit
By pulling one of the balls and hitting it against the other balls, they all subsequently move. This is due to a transfer of energy from one ball to another. A force acts on the balls causing them to move.
Once the transferred energy gets to the end of the chain of balls it can sometimes move back in the direction it has just travelled from, this can cause another force onto the balls so they move once again.
Curriculum Links
Pushes and Pulls
- That pushing or pulling things can make objects start or stop moving
- To make suggestions about how objects can be made to move and to find out whether they were right
- That it is not only ourselves that make things move by pushing
- To ask questions about what is causing movement
Forces and Movement
- To suggest questions about ways in which different objects move
- That pushes and pulls are examples of forces
Friction
- That the force between two moving surfaces in contact is called friction
- That friction can be useful
Forces in Action
- That several forces may act on one object
Last Modified: 28/07/2011
