(Q).
Question: It's easy to stab a pin into a pin cushion, but it's hard to stab one into a pillow. Which surface will make the pin get hotter when stabbing into it? (A) pin cushion (B) pillow Do not use A and B to answer the question but instead, choose between "pin cushion" and "pillow".
(A).
pillow

(Q).
Question: Katy noticed that riding her skateboard on a ramp created less resistance than riding it up a hill. Riding her skateboard on _____ creates more heat (A) ramp (B) hill Do not use A and B to answer the question but instead, choose between "ramp" and "hill".
(A).
hill

(Q).
Question: A pebble plunging through a pond experiences high friction, while one rolling across ice experiences low friction. This means the _____ is more rough (A) pond (B) ice Do not use A and B to answer the question but instead, choose between "pond" and "ice".
(A).
pond