Some machines, such as pulleys, are very simple because they have very few components. Other machines, such as computers, are complex because they have many components.
Machines can be classified depending on the energy source. There are machines which work with:
- Human energy, such as a bicycle or a hammer.
- Water or wind, such as a watermill or a windmill.
- Fuel, such as a car or a gas stove.
- Electricity, such as a washing machine or a mobile phone.
Machines can be classified depending on the energy source. There are machines which work with:
- Human energy, such as a bicycle or a hammer.
- Water or wind, such as a watermill or a windmill.
- Fuel, such as a car or a gas stove.
- Electricity, such as a washing machine or a mobile phone.
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