Q: Choose between "tile floor" and "cement". Question: Andy was running across the tile floor and sliding across it. There was less friction here, but he thought he could do the same outside on the cement. When Andy tries to slide across the cement, his socks will make _____ than when he slides across the tile floor. (A) more heat (B) less heat
A: tile floor

Q: Choose between "Star" and "Moon". Question: In the night sky the stars appear dimmer than the moon because the stars are (A) closer (B) farther
A: Moon

Q: Choose between "Empty Trailer" and "Loaded Trailer". Question: If a tractor pulling a trailer that is loaded and an identical tractor that is pulling an empty trailer, After 15 seconds, which will be going a greater speed? (A) Loaded Trailer (B) Empty Trailer
A: Loaded Trailer

Q: Choose between "stone driveway" and "cement garage floor". Question: Sean is riding his tricycle. He pedals out of the garage from the cement floor and onto the bumpier stone driveway. There will be more heat from the wheels on the (A) stone driveway (B) cement garage floor.
A: stone driveway