Question: I am testing my students' logic. What is the answer they should choose between "tile" and "grass"? Logic test: Bernie is pitching marbles. He notices that when he pitches the marbles on the tile in his kitchen, the marble goes faster and farther away than when he does the same action on grass. Which surface is applying less friction to the marble? (A) grass (B) tile?
Answer: grass

Question: I am testing my students' logic. What is the answer they should choose between "beach" and "scrub"? Logic test: A sand dollar sliding across a beach has more friction then one sliding across scrub. This means the sand dollar heats up more across the (A) beach (B) scrub
Answer: scrub

Question: I am testing my students' logic. What is the answer they should choose between "sidewalk" and "grass"? Logic test: Josh skated on the sidewalk and on the grass. He noticed that he could skate faster on the sidewalk than on the grass. If Josh simply allowed himself to roll freely, without pushing himself, could he roll further on the (A) sidewalk or (B) grass?
Answer:
sidewalk