Unit Test Answers

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

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 occurs when a warm fluid cools down?

What causes the air above a pot of boiling water to become warm?

Which shows the temperatures of three substances, in order, from greatest to least?

Which is equal to a temperature of 20°C?

Which type of energy is transferred by convection currents?

Which condition must be met for conduction to occur?

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

Which shows the formula for converting from kelvins to degrees Celsius?

Which is an example of radiation?

Which of these prevents conduction from occurring?

At which temperature does water have particles with a greater average kinetic energy than water with a temperature of 30°C?

Allison drew a diagram to illustrate radiation.

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