Choose between "Freight Train" and  "Bullet Train". Question: Freight trains are heavier than bullet trains so they are (A) slower to accelerate (B) faster to accelerate
Freight Train


Choose between "Average person" and  "Professional baseball player". Question: The average guy could not throw the ball as far as the professional baseball player because he was (A) stronger (B) weaker
Professional baseball player


Q: Choose between "sled with supplies on it" and  "empty sled". Question: Terrie leads her dog team to deliver some food and other things to someone in a snowbound cabin. Terrie's dogs pull the empty sled to a nearby supply station, then pull the loaded sled on to the snowbound cabin.  In which situation will the dogs have more difficulty in getting the sled moving swiftly? (A) when the sled is empty (B) when the sled is weighed down with supplies
A: empty sled


Question: Choose between "smooth pool bottom" and  "course pool bottom". Question: The skin on the bottom of my feet felt like they'd been shredded after cooling off at a pool for a couple of days, while the smoother surface of the second pool I enjoyed was much easier on my feet. This is because of the _____ friction of the smoother pool? (A) additional (B) reduced
Answer: course pool bottom


*Question*
Choose between "wood floor" and  "shag carpet". Question: Carl decides to try to roller blade over the shag carpet in the living room and then over the wood floor in the hallway. He will roll more quickly over the wood floor because it has (A) more friction (B) less friction.
**Answer**
shag carpet


(Q).
Choose between "floor" and  "lap". Question: Mike knows that his floor has less friction then his lap. An apple seed fell from the apple he was eating and rolled across his lap before falling to the floor and rolling around there. Which surface did the apple seed roll slower on? (A) lap (B) floor
(A).
floor