Question

Phoebe removes frozen vegetables from the freezer to make herself a stir-fry. She’s in a bit of a hurry, so she immerses the plastic bag of vegetables in a pot of warm water. As a result, the vegetables thaw in less than 15 minutes. Which sentences accurately describe the heat transfer that has taken place?

Answer 1

choices
- the plastic bag conducted heat to the vegetables
- the water and vegetables both lost an equal amount of heat
- heat from the vegetables was transferred to the water
- atoms in the vegetables began vibrating faster
- water in contact with the plastic bag cooled down

Answer 2

thoughts? recall that heat transfers from high thermal energy matter to low thermal energy matter (high ---> low). when something gains thermal energy, it gets hotter, and when something loses thermal energy, it gets colder. more thermal energy ---> the atoms have a higher average energy, and thus vibrate faster.

also recall that heat travels through conduction, convection, or radiation.

with all this in mind, try going through each of the statements and see which ones are true for this situation. as a hint, there are 3 true statements.