There are only six basic types of machine. Discover more about planes, wedges and screws: what are they and why are they useful?
- Machines based on the ideas of Archimedes make work easier.
- An inclined plane makes it easier to carry heavy objects.
- A wedge can be used to push things apart.
- A screw converts rotational force into a linear force.
Physical strength varies from person to person.
It can be increased with training.
But many tasks simply aren't possible without the aid of a machine.
Machines are tools that are used to make work easier.
Any time energy is transferred to an object, work is being done. A force is acting on ...
Please log in to view and download the complete transcript.