UNIT 6 - EXAM

Chose the odd one out.

Which one is not a simple machine?

• Lever

• Screw

• Washing machine

• Pulley

Choose a word and complete the sentence.

A ___________ is made up of a rigid bar and a fulcrum.

TRUE OR FALSE?

An inclined plane is a simple machine which uses a wheel and a rope or cable.

• True

• False

Complex machines have few or no moving parts.

• True

• False

Machines make our life easier because they help us to do work

• True

• False

Label the diagram.

• Wheel

• Rope

• Groove

• Load

Identify the class of lever

• Class 1 lever

• Class 2 lever

• Class 3 lever

Simple machines don't need electrical energy to work.

• True

• False

When we put simple machines together, we make _____________

• Ramps

• Simple machines

• Complex machines

• Levers

We use a pulley...

• To stop something moving

• To hold things together

• LeverTo lift and lower something heavy objects

• • To move things across the ground