Mostrando entradas con la etiqueta 4º UNIT 6 machines. Mostrar todas las entradas
Mostrando entradas con la etiqueta 4º UNIT 6 machines. Mostrar todas las entradas

lunes, 19 de junio de 2017

lunes, 15 de mayo de 2017

martes, 9 de mayo de 2017

TECHNOLOGY AND MACHINES
Technology is the group of methods and processes used in the production of tools to help and simplify some works.


A machine is a tool containing one or more parts that uses energy to perform a specific action.


We can find:
  • Machines that use mechanical energy to set a force or body in motion: muscles, animals, wind…


  • Machines that use electrical energy: bulbs, appliances, generators…



  • Machines that use other forms of energy: combustion engines, solar panels…


A component is an element that performs a function in a machine. We can find:
  • Simple machines: they have a few components. Scissors, wheelbarrow…
  • Compound machines: they have a lot of components. Cars, planes…

miércoles, 18 de mayo de 2016

COMPLEX MACHINES
More complicated machines (sometimes called Compound or Complex Machines) have two or more simple machines working together to do the same work.
  • A wheelbarrow is one example of a compound machine because it has levers (the handles) and a wheel.
Information copied from:
http://www.engquest.org.au/students-sm-lp.cfm


Complex machines can have these parts:
  • motors:
  • gears:
  • electric circuits:

  • electronic components:

http://www.edheads.org/activities/odd_machine/frame_loader.htm