(Question)
Choose between "clean floor" and  "sticky floor". Question: A toy car slid down the floor of a movie theater after it was cleaned. That same car was was rolled down the floor that was pretty sticky. It didn't go far at all. The car went further on the clean floor because it has (A) more resistance or (B) less resistance?
(Answer)
sticky floor


(Question)
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
(Answer)
empty sled


(Question)
Choose between "dry" and  "wet". Question: A truck was doing several test runs on a race track fitted with a sprinkler system on one end of the track to wet the asphalt. The tires of the truck were much warmer before getting to the wet part of the track. That means that friction was higher on the (A) dry part of the track or (B) wet part of the track?
(Answer)
dry