English National Curriculum Science - Previous Lessons Science
Mission Objectives
Describe what gears, levers and pulleys are
Explain why gears, levers and pulleys are helpful, and give some examples
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Words and meanings to learn
gear
A circular rotating cog with teeth which mesh with another object.
lever
An adjustable bar and fulcrum which operates by adding forces at either end of the bar and relies on torque to function
pulley
A wheel that holds onto a cord, flexible rope or other types of cable to lift up heavy objects
teeth
Sections in a wheel which are either inserted or cut in to allow it to mesh with another circular teethed object
fulcrum
The support for a bar to help balance it.
Expert film
Mission assignment film
Operations Support Worker
Nuclear Decomissioning Operative
Nuclear Decomissioning Team Leader
Nuclear Decomissioning Site Engineer
Technical or Production Director
Analytical Technician