A great engineering piece : the catapult -



INSTRUCTIONS : Research the different websites below and answer on your own paper the following paper
http://www.catapults.info/

http://www.middle-ages.org.uk/catapults.htm
http://www.howstuffworks.com/question127.htm
http://www.howstuffworks.com/fpte.htm
QUESTIONS :
1. What is Catapult ? :
2.What are 5 types of catapults :

1- _
2- _
3- _
4- _
5- _

3.What does the word " catapult" mean?

4. What are catapults capable of ?
5. How long and where have catapults have been used?
6. Define with a full sentence the following terms :
a- Trebuchet
b- brace
c-levers
d- fulcrum
e-counterweight
f- projectile
g- force
h- Resistance force
i - energy
j- potential energy
k-kinetic energy
l- torsion