Lab: Newton's Laws of Motion — Unit test Answers

Which of these actions would increase heat transfer between two objects?

Which statement best describes heat and thermal energy?

Which type of energy is transferred by convection currents?

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?

Which is an example of radiation?

Allison drew a diagram to illustrate radiation.

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

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?

Jin listed some common thermal insulators and conductors in a chart.Which belongs in the area marked with an X?

Which of these prevents conduction from occurring?

Which occurs when a warm fluid cools down?

Which condition must be met for conduction to occur?

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.

Which material would result in the least amount of energy transfer?

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