Heat Transfer — Unit test Answers

The chart shows the temperatures of four different substances.

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 condition must be met for conduction to occur?

A substance has a specific heat of 0.870 J/g°C. It requires 2,000.0 joules to increase the temperature of 10.0 grams of the substance from its original temperature to its final temperature.

Substance X transfers thermal energy to substance Y through conduction. What is an accurate conclusion about the condition of both substances before conduction occurred?

Which of these prevents conduction from occurring?

Allen made a diagram to compare radiation and conduction.

Which best describes a difference between energy transformations in power plants and dams?

In the heat equation, what does Q represent?

Which best describes the relationship between internal energy and thermal energy?

Which type of energy is transferred by convection currents?

Which describes the movement of a fluid during convection?

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

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

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.