- 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
Gear Table
By positioning the gears in different positions gear ratios can be investigated.
Activity.... Do - Think - Learn
Gears are wheels with teeth. When they are connected together, they change the speed or direction of movement.
Which way will the gears turn when you connect two gears together?
How does the size of the gear affect the speed it travels at?
Can you link all the gears together and make the bell ring?
The Science Bit
A gear is toothed wheels transmitting a turning movement from one to the other. The most common place gears are found is in motor vehicles and bicycles. The speed of the gears can be changed by using different size toothed wheels, either large or small. A standard motor vehicle has four forward speeds and one reverse. For a smooth transmission between gears in a car they are all made up of a similar mesh design to each other.
Curriculum Links
Pushes and Pulls
- That pushing and pulling things can make objects start 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
- That pushes or pulls can make things speed up or slow down or change direction
- 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
Unit 6E – Forces in Action
- That several forces may act on one object
Last Modified: 28/07/2011
