Question: I am testing my students' logic. What is the answer they should choose between "trackpad" and "sandpaper"? Logic test: Rubbing your finger across a trackpad is very easy, but rubbing it across a piece of sandpaper results in high friction. Which surface will let you rub your finger a greater distance? (A) trackpad (B) sandpaper
Answer: trackpad

Question: I am testing my students' logic. What is the answer they should choose between "Joe" and "David"? Logic test: David and Joe live together and go out at the same time. David drove his car and Joe rode his skateboard. After one hour, who traveled less distance? (A) David (B) Joe
Answer: David

Question: I am testing my students' logic. What is the answer they should choose between "red giant star" and "small young star"? Logic test: A small young star has formed and gained mass over time. However it's still a small fraction of the mass of a red giant star that is nearby. The small young star is sucked into orbit around the red giant star due to the higher level of gravitational pull of the red giant star. This means that (A) the red giant star has more powerful gravity (B) the small young star has more powerful gravity.
Answer:
red giant star