A moving belt represents the flow of water through the Strangford Lough Narrows between Strangford and Portaferry. You are invited to roll a model ferry across the moving belt to a 'harbour' on the other side, taking account of its movement. You can control the launch angle to the shore, and the rate and direction of flow.
Captains taking the ferry across Strangford Lough Narrows between Strangford and Portaferry have to take into consideration both the speed of their ferry, and the speed of the water flow. For example if the water is flowing into the Lough at about 3 metres per second, and the speed of the ferry is also 3 metres per second, then the captain has to steer the ferry out to sea at an angle of about 450 to enable it to cross directly to the other side. This is an example of vector addition, where the sum of the two velocities, of the tide and of the ferry, has to take into account the direction of motion as well as its magnitude.
Although Portaferry and Strangford are only about 1 kilometre apart, directly over the narrows, the distance by road round the north end of Strangford Lough is over 70 kilometres. Light car ferries like this make travel easier, especially in places like the west coast of Scotland where there are many islands.
Understanding the situation; Identifying factors in the situation; Analysing elements of the situation; Perceiving and establishing relationships between consequences and their causes; Developing a plan of action; Determining and following rules in a situation; Identifying and eliminating mistakes
Visual; Kinaesthetic; Spatial; Logical / mathematical
www.roadsni.gov.uk/index/strangfordferry.htm (the official website)
www.roadsni.gov.uk/index/strangfordferry/strangfordferry-history.htm (history of the ferry)