Radiation — Unit test

Question 1

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?

Revolt · Accepted Answer

The convection current will reverse direction, reversing the winds.

Question 2

Which is equal to a temperature of 20°C?

Revolt · Accepted Answer

68°F

Question 3

Which occurs when a warm fluid cools down?

Revolt · Accepted Answer

Energy is released to the environment.

Question 4

Which condition must be met for conduction to occur?

Revolt · Accepted Answer

particles must be in contact

Question 5

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

Revolt · Accepted Answer

black asphalt, brown soil, beige sand, white paper

Question 6

Which type of energy is transferred by convection currents?

Revolt · Accepted Answer

thermal

Question 7

Which is an example of radiation?

Revolt · Accepted Answer

A melting snowman sweats drop of water under a bright sun.

Question 8

Allison drew a diagram to illustrate radiation.

Revolt · Accepted Answer

X: HotY: Cold

Question 9

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.

Revolt · Accepted Answer

Piroja’s experiment

Question 10

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?

Revolt · Accepted Answer

the oatmeal

Radiation — Unit test Answers

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