FORCES - CATAPULTS
To know that how much an elastic band stretches depends on the force acting on it
To make careful measurements of length
To represent data in a line graph and use this to identify patterns in the data
To design a fair test involving propelling Agent Eggy Bond over a wall to pursue Jaws - the egg box.
1. Watch the videos below.
What have you learnt about forces in catapults?
What happens if we manipulate one of the forces?
Can we make the trajectory longer?
3. Devise a testable question based on understanding of forces eg:
the longer the arm of the catapult, the further the egg will travel
the thicker the elastic bands, the further the catapult will travel.
What are you going to investigate?
Write your question in the comments below.
4. Design your catapult and draw a labelled picture of your model.
Look at the example below.