Q: The more rope segments on a pully that are helping to do the lifting work, the less force that is needed for the job.  Will has a pully with 5 rope segments. Alan's pully has an equal size rope with 7 segments. Which person needs less force to do the same job Will or Alan?
A: Alan


Q: It would be hard to get a big chunk of chocolate to dissolve in your milk or hot water. Maybe you could make hot chocolate from some smaller pieces like chocolate chips, but it is much easier to add a powder to your milk. This is because the smaller the pieces are, the more surface area they have.  Dean wants to melt chocolate to drink in his milk. He puts a big piece of chocolate in, and a small piece of chocolate in. The piece with more surface area, which will melt first, is the piece that is bigger or smaller?
A: smaller


Q: The closer together the particles in a longitudinal wave are, the greater the amplitude.  If Mona creates a longitudinal wave and decreases the distance of the particles in the wave, what happens to the amplitude of that wave increases or decreases?
A: increases


Q: In general, fossils in older rocks are less similar to modern organisms.  Jimmy found a fossil on the beach. He compared it to a fossil in the museum that was much older. Which fossil more likely resembles modern organisms beach fossil or museum fossil?
