Heat
This chart lists four examples of two objects that are in contact. Which statement accurately describes the flow of heat in each example? Heat will flow from Object 1 to Object 2 in examples 2 and 4, and heat will flow from Object 2 to Object 1 in examples 1 and 3 Heat will flow from Object 1 to Object 2 in examples 1 and 3, and heat will flow from Object 2 to Object 1 in examples 2 and 4 Heat will flow from Object 1 to Object 2 in Example 3, and heat will flow from Object 2 to Object 1 in examples 1, 2, and 4 Heat will flow from Object 1 to Object 2 in examples 1, 2, and 4, and heat will flow from Object 2 to Object 1 in Example 3
Heat will flow from Object 1 to Object 2 in examples 1, 2, and 4, and heat will flow from Object 2 to Object 1 in Example 3
Which direction does heat flow from? ho hot to cold cold to hot hot to hot cold to cold
hot to cold
Shelly tells a friend that her computer needs to be fixed because it has been producing a lot of heat and is smoking. Where is the error in her statement? Heat cannot be described as having been produced Thermal energy cannot be produced by electronics Her computer should be producing a lot of heat and does not need to be fixed Her computer is producing thermal energy, not heat
Her computer is producing thermal energy, not heat
What must be true about two objects if heat is flowing between them? The objects must be different temperatures The objects must be the same temperature The objects must both be over room temperature The objects must both be under room temperature
The objects must be different temperatures.
A burner on a stove produces temperature thermal energy hotness fire energy
Thermal energy
The metal aluminum coils in an air conditioner conduct thermal energy from inside the house and release it outside the house. What can be said about the coils when they are accepting the heat inside the house? They must be warmer than the air inside the house They must be cooler than the air inside the house They must have more thermal energy than the air inside the house They must be more insulated than the air inside the house
They must be cooler than the air inside the house
Which best describes the direction of heat? from a substance with no thermal energy to a substance with high amounts of thermal energy from a substance with less thermal energy to a substance with more thermal energy from a cooler substance to a warmer substance from a warmer substance to a cooler substance
from a warmer substance to a cooler substance
Which factors affect heat transfer between a warm and a cool substance? the time it took to heat the substance, the area of contact, and the specific heats of the substances the amount of time of contact, the area of contact, and the specific heats of the substances the time it took to heat the substance, the area of the substances, and the specific heats of the substances the amount of time of contact, the area of the substances, and the specific heats of the substances
the amount of time of contact, the area of contact, and the specific heats of the substance
Ixchelt burns her tongue when she takes a sip of hot coffee from her mug. Which part of this example represents heat? the thermal energy moving from the coffee to her tongue the thermal energy moving from her tongue to the coffee her coffee her tongue
the thermal energy moving from the coffee to her tongue
Heat is most closely related to which kind of energy? nuclear electrical thermal chemical
Thermal