Which scenario shows radiation?(1 point) Responses Air warmed by a floor radiator rises to the top of a room, forcing cooler air downward. Air warmed by a floor radiator rises to the top of a room, forcing cooler air downward. Eggs cook in a skillet. Eggs cook in a skillet. Eggs boil in a pot of water. Eggs boil in a pot of water. The air under a reading lamp is warmed.
Air warmed by a floor radiator rises to the top of a room, forcing cooler air downward.
Which pair of objects will have an attractive electric force? Pair Object 1 Charge Object 2 Charge A -2 -1 B -3 +1 C +3 +1 D +1 +2(1 point) Responses Pair B Pair B Pair A Pair A Pair C Pair C Pair D
Pair B (Object 1 has a charge of -3 and Object 2 has a charge of +1)
How does the structure of atoms in a substance determine the substance’s conductivity?(1 point) Responses If an atom’s nucleus is positively charged, the substance is a good conductor. If an atom’s nucleus is positively charged, the substance is a good conductor. If an atom’s outer shell of electrons is positively charged, the substance is a good conductor. If an atom’s outer shell of electrons is positively charged, the substance is a good conductor. If an atom’s outer shell of electrons is loosely bound to the nucleus, the substance is a good conductor. If an atom’s outer shell of electrons is loosely bound to the nucleus, the substance is a good conductor. If an atom’s outer shell of electrons is tightly bound to the nucleus, the substance is a good conductor. If an atom’s outer shell of electrons is tightly bound to the nucleus, the substance is a good conductor.
If an atom’s outer shell of electrons is loosely bound to the nucleus, the substance is a good conductor.
