Lab: Thermal Energy Transfer — Unit test Answers

Which indicates that thermal energy is no longer being transferred from boiling water to a mug?

Which occurs when a warm fluid cools down?

Cindy pours cool milk into a hot bowl of oatmeal and then stirs it with a room-temperature spoon. Which substance will have heat flow from it to the other substances?

Four students are carrying out different laboratory procedures.Piroja is mixing baking soda and vinegar to see if it reacts.Jason is heating salt water over a burner until the water evaporates.Kali is putting crushed ice and ice cubes on a table to see which melts first.Francisco is separating iron filings from sand using a magnet.

At the coast on a summer day, the land is hotter than the ocean. Warm air over the land rises and is replaced by cooler air, causing a sea breeze. At night, the land cools quickly and the ocean is now warmer than the land. What will happen next?

Which is the correct order of materials in terms of reflectivity, from least to greatest?

Which type of energy is transferred by convection currents?

Allison drew a diagram to illustrate radiation.