Week 1 | Week 2 | Week 3 | Week 4 | Week 5 | Week 6 | Homework Tasks |

# An Introduction to Mechanisms

## 1 Homework Tasks

### Research It

i) Find two examples for each of the three classes of lever.

ii) Label at least one example for each to show where the fulcrum/pivot, effort and load are.

**Upload your work to www.bournetolearn.com badge 1.**

### Calculate It

- Calculate the answers to the following problems involving gear ratios:
- A driver pulley has a diameter of 200mm and rotates with a speed of 30rpm. Calculate the speed of a driven pulley with a diameter of 100mm.
- A driver pulley has a diameter of 80mm and rotates with a speed of 50rpm. Calculate the speed of a driven pulley with a diameter of 100mm.
- A driver pulley has a diameter of 50mm and rotates with a speed of 10rpm. Calculate the required diameter of a driven pulley if we want it to rotate at 50rpm.

**Upload your answers to www.bournetolearn.com badge 2.**