Choose between "boy out of car" and "boy sitting in car". Question: Alex is pushing his son in a toy car. It is _____ to speed up the car when the boy is out of it. (A) easier (B) harder
boy out of car

Choose between "auditorium" and "concert hall". Question: A skateboard's wheels get less hot riding through an auditorium compared to a concert hall. Which surface offers greater resistance? (A) concert hall (B) auditorium
auditorium

Choose between "tile floor" and "carpet". Question: Carla is getting her suitcase ready for a vacation. She fills it up in the bedroom, and rolls it across the carpeted floor into the kitchen. Carla notices that the suitcase rolls easier on the tile floor in the kitchen than it did in the carpeted bedroom. This is because the carpet has _____ than the tile floor. (A) more friction (B) less friction
tile floor