Across
- 3. The act of slowing a moving object. In CO2 racing, a car must be safely decelerated after it crosses the finish line.
- 4. Restricted to a limited space; carbon dioxide is confined in a sealed cartridge.
- 8. The force that propels an object, sets it into motion, or keeps it moving.
- 10. A CO2 race car design in which a narrow rail connects the front axle to the back of the car and has wheels mounted on the outside of the car body.
- 12. A bench-mounted or freestanding power tool used to make precise, curved cuts that is ideal for rough shaping CO2 car bodies.
- 14. The property or tendency of an object at rest to remain at rest unless acted upon by a force.
- 15. A property of an airstream moving in a swirling or tumbling fashion; see also eddie.
- 16. A measurement of force per unit of area. In a sealed CO2 cartridge, pressurized carbon dioxide gas exerts an equal force in all directions to the inner surfaces of the cartridge.
- 17. The CO2 cartridge on board a race car. The power plant housing is the body material that surrounds the cartridge.
- 18. Describing an object’s visual appeal or attractiveness.
- 20. A set of very specific requirements for a project or competition, often including a set of measurements.
- 26. The race system component that is located on the finish line of the racetrack. As the two cars speed through the gate, individual sensors detect their presence, stopping the system’s electronic timers.
- 28. A bench-mounted or freestanding power tool used for drilling precise holes. Particularly useful for drilling properly aligned axle holes in the car body.
- 31. A race car with external wheels that has a triangular wedge body shape.
- 32. A small, sealed, metal tube that contains compressed carbon dioxide. CO2 cartridges are used to propel race cars down the track.
Down
- 1. A single-strand line used to prevent speeding CO2 cars from soaring off the track. The line is threaded through two screw eyes mounted to the underside of a car body, and then it is stretched tight and anchored on extreme ends of the track.
- 2. The properties and forces produced as an object moves through the air or a stream of air moves around an object.
- 4. An assembly of lights oriented in two vertical columns used near the starting line of drag racing and CO2 racing to signal the start of the race.
- 5. Part of launch pod assembly with sharp pointed end that punctures a hole in cars’ CO2 cartridges to start a race. Made of hardened steel.
- 6. The relative positioning of a pair of cars just before they race. Nose, or nose-to-nose, alignment is achieved when the extreme forward points of both cars are aligned with the starting line.
- 7. Small screws with an enclosed ring on one end. Two screw eyes are mounted on the bottom of CO2 race cars to accommodate the racetrack’s monofilament guideline.
- 9. A race car that races a short distance on a straight track. CO2 race cars are often referred to as dragsters.
- 11. A small handheld saw with a narrow blade, useful for making curved cuts in wood. Good for rough shaping race car bodies if a band saw is unavailable.
- 13. The aerodynamic force that pushes upward on a body as it moves through an airstream. Airplane wings generate lift; race car bodies might also generate lift, positive or negative (downward force), as they move down the track.
- 19. A small, quick sketch used to rapidly communicate ideas.
- 21. The force that resists relative motion between two objects in contact.
- 22. The friction between a car’s tires and the road surface. Traction enables the wheels/tires to propel a car forward without the wheels spinning in place. In CO2 racing, the wheels do not propel the vehicle, so increasing traction is not necessary.
- 23. A freestanding racetrack surface that is roughly the same height as a tabletop. Spectator viewing is greatly enhanced with an elevated track. Pitsco’s FasTrak is a fine example.
- 24. An acceptable variance from a specified measurement that’s used to determine the minimum and maximum measurements.
- 25. The area of the racetrack before the starting line, on the extreme end. Pairs of cars are placed in this area (after they are threaded onto the monofilament guideline) to await their turn to race. The staging of cars saves time during a racing competition.
- 27. To have balance, or to have the same shape or size on opposite sides.
- 29. A turbulent flow of air that moves in a random tumbling, or circular, pattern.
- 30. The force that resists an object’s movement through the air. The more the object disrupts the laminar flow of air around it, the more drag is developed.