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MACHINES AND INVENTIONS (Transport Revolution (Steam train (40 km per…
MACHINES AND INVENTIONS
A MACHINE IS:
Something that makes our work easier and use energy
Types
Simple
Have few or no moving parts
Examples
Wheel and axle
Inclined plane
Load
Inclined surface
Wedge
Thick end
Inclined surface
Pulley
Rope
Wheel
Lever
Fulcrum
Rigid bar
Screw
Inclined surface
Shaft
Complex
Often need electrical energy
Made up of a number of simple machines
Industrial Revolution
Factories
Transport Revolution
Steam train
40 km per hour
Electric train
Electric cars
Communication Revolution
Examples
Smartphone
Telegraph
Sent tapped messages
Telephone
Invented140 years ago
AN INVENTION IS
Something that has never been invented before