MACHINES
Simple Machines
There are six simple machines ....
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COMPLEX MACHINES
What is a complex machine? A complex machine is made up of simple machines working together.
Complex machines need energy to work. This energy can come from people, electricity or fuel. We can see complex machines in our homes, in our school, in our cities and in the factories. Example of complex machines: · Electrical appliances in our homes such as washing machines, dishwashers and cookers use electricity from the mains and calculators at school use electricity from batteries. · Forms of transport such as cars, buses and lorries use fuels like petrol and diesel to work. Bicycles use energy from people. · At work we use robots to make mass-produced products. Robots can be quicker than people and they can do jobs that are dangerous for people. Machines are improving all the time. They are getting quicker, more efficient and safer to use. |
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