Unit 3: Machines, processes and cycles.

1. A washing machine contains a pump and a motor.

• True

• False

Inside a vacuum cleaner, there is a filter and....

• rotaing brushes

• Piston

• Cylinder

• Valve

A filter and a tube can be found in a television.

• True

• False

An air conditioning unit contains a coil and a ...

• axle

• fan

• lens

• brushes

axle /'æksl/ means .......................................................................

• a long straight piece of metal that connects a pair of wheels on a vehicle.

• a device that is placed inside a car engine, clock, radio, etc. and that produces the electricity that makes it work.

• a curved piece of glass or plastic that makes things look larger, smaller or clearer when you look through it.

A photocopier has various components, including rollers and a piston.

• True

• False

Lens mean:

• something that causes problems and prevents you from achieving your aim.

• a curved piece of glass or plastic that makes things look larger, smaller or clearer when you look through it.

• a machine or part of a machine that produces continuous turning power from a fast-moving flow of a liquid or gas, using a set of vanes attached to a wheel or rotor.

turbine /'tɜːbaɪn/ means .........................................................

• a long straight piece of metal that connects a pair of wheels on a vehicle

• a machine or part of a machine that produces continuous turning power from a fast-moving flow of a liquid or gas, using a set of vanes attached to a wheel or rotor.

A lever and a spring are component parts of a ...

• washing machine.

• toaster.

• air condition.

A valve and a switch can be found in an aerosol spray.

• True

• False