ROUND 9: Science

Kinematics

1. What is the term for a force applied to an object in such a manner that
   it moves in a circle?  (For example, the Sun's gravity as applied to the
   Earth.)

	Centripetal (not centrifugal)

2. Several objects are sliding toward each other on a frictionless surface;
   you know all the masses and velocities.  They collide and stick together
   in a single lump.  You can calculate the resulting velocity of this lump
   by using the fact that what quantity is always conserved?

	Momentum (not energy)

	If this isn't gotten, announce the answer and read this
	substitute audience question: "How is the momentum of an
	object calculated?"  (Answer: mass x velocity [not speed].)

3. What is the term for a collision where kinetic energy is conserved as
   well as momentum?

	Elastic


Calculus

Please refer to the handout sheet, and relax, you aren't going to be
asked to evaluate any of the expressions.

4. Which expression contains an indefinite integral?

        8

5. Which expression contains a second derivative?

        2

6. Which expression contains a partial derivative?

        1


Legumes

Please refer to the legumes. ("Live" examples were passed out at the game.)

7. Identify the adzuki beans.

	2

8. Identify the cow beans.

	8

9. Identify the pigeon peas.

	5


Recyclable plastics

Recyclable plastics are commonly numbered 1 through 6 for sorting
purposes.  Number 7 (called "Other") you might as well plant flowers in.

10. Plastic number 3 is commonly used for plastic pipes, outdoor furniture,
    shrink wrap, water bottles, etc.  By what name is it better known?
    The common abbreviation is acceptable.

	polyvinyl chloride (PVC)
	(also accept simply "V", which sometimes appears below the "triangle")

11. Plastic number 6 is used to manufacture CD jewel cases, plastic
    cutlery, insulation, and packaging materials, among other things.
    Name it.  This time we want the full name, not an abbreviation,
    and if you feel impelled to answer with a well-known trademark of
    Dow Chemical, please resist this because we won't accept it.

	polystyrene
	(not "styrofoam", a trademarked name for extruded foam polystyrene)

12. Plastics number 2 and 4 are abbreviated HDPE and LDPE respectively.
    Give the full name of either.

	High (Low) Density PolyEthylene


Geology

13. There are three major types of volcanoes: cinder cones, composite, and
    this type.  All the islands of Hawaii are formed from this type of
    volcano, which is created from large runny lava flows that create a
    domed mountain.

	shield (volcano)

14. There are two types of crust, oceanic and continental.  Continental
    crust is composed mostly of granite, while oceanic crust is composed
    mostly of what type of rock?

	basalt

15. What is the name of the largest volcano in the solar system?  It's
    extinct, and it's on Mars.

	Olympus Mons (accept Nix Olympica, the old name)