Reflection 5:

New topic:

Design Futures Year 10 Pre- Engineering Trebuchet Design:

Height: Is not to exceed 550mm

- energy can not be created but it can be transferred or transformed.
- the trebuchet transforms from stored gravitational potential energy to kinetic energy to air friction

EXAMPLES:

This is a photo of a Trebuchet with a sling.
Mr Wards:
Potential Energy (gravity) = m x g x h
                                         = 3 x 9.8 x 0.4
                                         = 11.76 Joules