Question: Choose between "playpen" and  "living room". Question: A baby experiences less friction crawling in his playpen then crawling in the living room. Which surface will force the baby to crawl at a lower rate of speed? (A) playpen (B) living room
Answer: living room

Question: Choose between "asphalt" and  "gravel". Question: Bill was driving his car to work, and realized that when he was driving on the street, the car moved quicker while using the same amount of throttle as when he was driving on the gravel. This is because there is less friction on the (A) asphalt (B) gravel
Answer: asphalt

Question: Choose between "red train" and  "green train". Question: Ian and Avery are taking trains from the same station. Ian's train is red, and is going ten miles an hour to a destination forty miles away. Avery's train is green and is going thirty miles an hour to a destination forty miles away. The train that is slower is (A) red (B) green
Answer:
red train