1. Trebuchet!

2. Arc
Arc- A bow-shaped curve or a segment of a circle.

3. Diameter
The distance from one side of a circle or sphere to the other passing through the center of the circle or sphere.

4. Distance
Distance- The measure of length between two points.

5. Equation
Equation- A statement of relation between two quantities

6. Fulcrum
Fulcrum- The point or support at which a lever pivots.

7. Gravity
Gravity- The force that pulls all objects toward the center of Earth.

8. Kinetic Energy
Kinetic Energy- The energy of motion; 1/2 x mass x velocity squared.

9. Mass
Mass- The amount of matter in an object.

10. Measure
Measure- To determine the amount of length, volume, or mass.

11. Position
Position- Location in space.

12. Potential Energy
Potential Energy- Energy an object has because of its position; starting energy.

13. Range
Range- The distance a projectile travels.

14. Re-engineer
Re-engineer- to redesign and make different.

15. Trajectory
Trajectory- The curve described by a projectile in flight.

16. Trebuchet
Trebuchet- A medieval siege machine using a counterweight to throw a projectile.

17. Trends
Trends- The patterns or directions associated with a set of data.

18. Velocity
Velocity- The speed and direction of an object’s motion.