Choose between "wet windshield" and  "icy windshield". Question: George noticed that his windshield wipers moved more smoothly over his windshield when it was wet than when it was icy. He decided that there is less friction on a (A) wet windshield (B) icy windshield.
wet windshield
------
Choose between "a black and gold moon" and  "a reddish moon". Question: A new planet has been discovered with two moons circling it. One is reddish and the other is black and gold. Scientists saw that asteroids were more attracted to the black and gold moon. Which of the moons has weaker gravity? (A) the reddish moon (B) the black and gold moon
a black and gold moon
------
Choose between "steel ball" and  "pebble". Question: A steel ball has a greater mass then a pebble. Which object has a stronger gravitational field? (A) steel ball (B) pebble
steel ball
------
Choose between "tabletop" and  "bedroom floor". Question: Jeff determined that moving his boxing glove across a tabletop created lower friction then when he moved it across his bedroom floor. This means that the boxing glove will travel faster over the (A) tabletop (B) bedroom floor
tabletop
------